75607 + Interview Questions in Secondary School in Science

1.	Identify bacterial sexually transmitted diseasesa) AIDSb) Syphilis c) Gonerrhead) Both B and C
Answer» ANSWER: L THINK answer is OPTION d

1.

Identify bacterial sexually transmitted diseasesa) AIDSb) Syphilis c) Gonerrhead) Both B and C

Answer»

ANSWER:

L THINK answer is OPTION d

Discussion

2.	(b) State any 2 factors on whichthe strength of magneticfield, for a circularloop depends?
Answer» ANSWER: yes Explanation:

2.

(b) State any 2 factors on whichthe strength of magneticfield, for a circularloop depends?

Answer»

ANSWER:

yes

Explanation:

Discussion

3.	Which of the following is an electrol(a) Sugar(b) Alcohol(c) Sulphuric acid (d) KeroseneThe solution that conducts electricit
Answer» ANSWER: answer Explanation: ALCOHOL is ELECTROL

3.

Which of the following is an electrol(a) Sugar(b) Alcohol(c) Sulphuric acid (d) KeroseneThe solution that conducts electricit

Answer»

ANSWER:

answer

Explanation:

ALCOHOL is ELECTROL

Discussion

4.	D. A stone thrown vertically upwards with initial velocity u reaches a height 'h' before coming down. Show that the time taken to go up is same as the time taken to come down.
Answer» Given:- A stone thrown vertically upwards with initial velocity " u ". Reaches a height " h " before coming down. To Prove:- The time TAKEN to go up is same as the time taken to come down. Proof:- Here, We have to use the equation of motions, v = u + at -------------------- (1) v² = u² + 2as -------------------- (2) Where v is the final velocity after time t, u is initial velocity, a is acceleration and s is distance travelled in time t. Let u be the initial velocity of stone. when the stone reaches the maximum height after time t , its final velocity is zero. When the stone travelling vertically upwards, it is experiencing the retardation due to gravity. hence, we write the above equation of motion (1) as, $0 = u - g \times t \ \ or \ \ t = \dfrac{u}{g}$ -------------------- (3) equation (2) will be WRITTEN as, 0 = u2 - 2×g×h, or $u = \sqrt{2 \times g \times h}$ ------------------- (4) by substituting u from equation (4) in equation (3), we have t $\dfrac{u}{g} = \dfrac{\sqrt{2 \times g \times h}}{g} = \sqrt{\dfrac{2 \times h}{g}}$ ------------------- (5) After reaching maximum height, the stone descends with zero initial velocity, accelerated downwards due to gravity and reaches the ground after time t'. Equations (1) and (2) are written as follows for downward travel $v = 0+gt'\ \ or\ \ t' = \dfrac{v}{g}$ -------------- (6) $v^{2} = 0 + 2gh$ $v = \sqrt{2 \times g \times h}$ ------------------- (7) from equation (4) and equation (7), we can conclude that initial velocity and final velocity when the stone reaches the ground are equal. by substituting for v from equation (7) in equation (6), we GET $t' = \dfrac{v}{g} = \dfrac{\sqrt{2 \times g \times h}}{g} = \sqrt{\dfrac{2 \times h}{g}}$ ----------------------- (8) from equation (5) and equation (8), time of ascending the height h is equal to time of descending from same height h. Hence, The time taken to go up is same as the time taken to come down. ------------------------- Proved ---------------------------

4.

D. A stone thrown vertically upwards with initial velocity u reaches a height 'h' before coming down. Show that the time taken to go up is same as the time taken to come down.

Answer»

Given:-

A stone thrown vertically upwards with initial velocity " u ".

Reaches a height " h " before coming down.

To Prove:-

The time TAKEN to go up is same as the time taken to come down.

Proof:-

Here, We have to use the equation of motions,

v = u + at -------------------- (1)

v² = u² + 2as -------------------- (2)

Where v is the final velocity after time t, u is initial velocity, a is acceleration and s is distance travelled in time t.

Let u be the initial velocity of stone.

when the stone reaches the maximum height after time t , its final velocity is zero.

When the stone travelling vertically upwards, it is experiencing the retardation due to gravity.

hence, we write the above equation of motion (1) as,

$0 = u - g \times t \ \ or \ \ t = \dfrac{u}{g}$ -------------------- (3)

equation (2) will be WRITTEN as, 0 = u2 - 2×g×h, or

$u = \sqrt{2 \times g \times h}$ ------------------- (4)

by substituting u from equation (4) in equation (3), we have t

$\dfrac{u}{g} = \dfrac{\sqrt{2 \times g \times h}}{g} = \sqrt{\dfrac{2 \times h}{g}}$ ------------------- (5)

After reaching maximum height, the stone descends with zero initial velocity, accelerated downwards due to gravity and reaches the ground after time t'.

Equations (1) and (2) are written as follows for downward travel

$v = 0+gt'\ \ or\ \ t' = \dfrac{v}{g}$ -------------- (6)

$v^{2} = 0 + 2gh$

$v = \sqrt{2 \times g \times h}$ ------------------- (7)

from equation (4) and equation (7), we can conclude that initial velocity and final velocity when the stone reaches the ground are equal.

by substituting for v from equation (7) in equation (6), we GET

$t' = \dfrac{v}{g} = \dfrac{\sqrt{2 \times g \times h}}{g} = \sqrt{\dfrac{2 \times h}{g}}$ ----------------------- (8)

from equation (5) and equation (8), time of ascending the height h is equal to time of descending from same height h.

Hence, The time taken to go up is same as the time taken to come down.

------------------------- Proved ---------------------------

Discussion

5.	Mountaineers carry oxygen cylinder with them because:a. the air is very cold up the mountain b. there is less amount of oxygen in the air at the top of mountainc. they feel happy curring the the oxygen ccylinderd. oxygen is required for burning
Answer» ANSWER: OPTION b is RIGHT ans as AMOUNT of oxygen is less

5.

Mountaineers carry oxygen cylinder with them because:a. the air is very cold up the mountain b. there is less amount of oxygen in the air at the top of mountainc. they feel happy curring the the oxygen ccylinderd. oxygen is required for burning

Answer»

ANSWER:

OPTION b is RIGHT ans as AMOUNT of oxygen is less

Discussion

6.	PWMLILIUMWhy this arrangement of elements is similar to the above period of modern periodictable?
Answer» ANSWER: not UNDERSTAND SORRY

6.

PWMLILIUMWhy this arrangement of elements is similar to the above period of modern periodictable?

Answer»

ANSWER:

not UNDERSTAND SORRY

Discussion

7.	3.3 Indicate why it is important to follow a course or a program in keeping with yourvalue system.(4x1) (4)
Answer» EXPLANATION: hgdddddfghh ddssfhhfewrt dewedf

7.

3.3 Indicate why it is important to follow a course or a program in keeping with yourvalue system.(4x1) (4)

Answer»

EXPLANATION:

hgdddddfghh ddssfhhfewrt dewedf

Discussion

8.	Carbon dioxide ___________ *1) turns lime water milky2) is odourless3) is colourless4) all of the above
Answer» ANSWER: $\huge{\boxed{\sf{\red{Answer}}}}$ TURNS LIME WATER milky mark me as BRAINLIST

8.

Carbon dioxide ___________ *1) turns lime water milky2) is odourless3) is colourless4) all of the above

Answer»

ANSWER:

$\huge{\boxed{\sf{\red{Answer}}}}$

TURNS LIME WATER milky

mark me as BRAINLIST

Discussion

9.	1 point19. Complete the series-Gravitational pull: Tide ::Shadow in the universe:O EclipseO High tideOLow tideO Translucent object
Answer» ANSWER: ECLIPSE is the answer. EXPLANATION: THANKS

9.

1 point19. Complete the series-Gravitational pull: Tide ::Shadow in the universe:O EclipseO High tideOLow tideO Translucent object

Answer»

ANSWER:

ECLIPSE is the answer.

EXPLANATION:

THANKS

Discussion

10.	(5x1=5marks)I. Choose the correct option.1. Which one is a unit of mass?a) gram b) degree c) centimetred) Inch2 A fixed amanthathat
Answer» ANSWER: hope it useful means MARK as brainlist please. Explanation: 1)a.gram

10.

(5x1=5marks)I. Choose the correct option.1. Which one is a unit of mass?a) gram b) degree c) centimetred) Inch2 A fixed amanthathat

Answer»

ANSWER:

hope it useful means MARK as brainlist please.

Explanation:

1)a.gram

Discussion

11.	Match the following (1x5=5)A B16. Reticulate venation Mango17. skull Fibrous root18. shrub Fixed Joint19. Ears Tap root20. Parallel venation Lemon Cartilage
Answer» EXPLANATION: xe88ee7ueueududidudisixiicigiigivicisis

11.

Match the following (1x5=5)A B16. Reticulate venation Mango17. skull Fibrous root18. shrub Fixed Joint19. Ears Tap root20. Parallel venation Lemon Cartilage

Answer»

EXPLANATION:

xe88ee7ueueududidudisixiicigiigivicisis

Discussion

12.	Write reactions for the following.a) When methane is treated with chlorine gas.b) When sodium hydroxide is treated with carbon dioxide. c) When methane is burn in presence of oxygen.
Answer» Answer: When methane reacts with chlorine a substitution reaction occurs and the organic product is chloromethane. 2 NaOH (s) + CO2 (g) →Na2CO3 (aq) + H2O (l) This means that solid REAGENT grade sodium HYDROXIDE is not pure enough to weigh and use directly. Furthermore, the carbonate ion interferes in acid-base titrations because 1) it is a weak base, and 2) it tends to make the color change at the end point less sharp. If you TEST a reaction that releases heat, the temperature of the water will INCREASE. Hydrocarbon fuels like methane (CH4) burn in the presence of oxygen to produce CARBON dioxide and water. This process of combustion releases energy.

12.

Write reactions for the following.a) When methane is treated with chlorine gas.b) When sodium hydroxide is treated with carbon dioxide. c) When methane is burn in presence of oxygen.

Answer»

Answer:

When methane reacts with chlorine a substitution reaction occurs and the organic product is chloromethane.

2 NaOH (s) + CO2 (g) →Na2CO3 (aq) + H2O (l) This means that solid REAGENT grade sodium HYDROXIDE is not pure enough to weigh and use directly. Furthermore, the carbonate ion interferes in acid-base titrations because 1) it is a weak base, and 2) it tends to make the color change at the end point less sharp.

If you TEST a reaction that releases heat, the temperature of the water will INCREASE. Hydrocarbon fuels like methane (CH4) burn in the presence of oxygen to produce CARBON dioxide and water. This process of combustion releases energy.

Discussion

13.	Pure or distilled water is a(a) poor conductor(b) good conductor© both (a) and (b)(d) none of these8.Sound is a kind of(a) work(b) energy© force(d) pressure
Answer» ANSWER: a)POOR conductor b) ENERGY

13.

Pure or distilled water is a(a) poor conductor(b) good conductor© both (a) and (b)(d) none of these8.Sound is a kind of(a) work(b) energy© force(d) pressure

Answer»

ANSWER:

a)POOR conductor

b) ENERGY

Discussion

14.	6.Match the column A, B and C by identifying the correctchemical formulae and the use of the salts.SaltChemical formulaUseWashing sodaCuSO, 51,0Fire extinguisherGypsumNaHCO,FungicideBlue vitriolNa, CO,.10H,Omanufacture ofCementBaking sodaCaSO2.2H20manufacture ofGlass
Answer» ANSWER: sgshshsgsgsjshshbsbsnshshsbsbsb

14.

6.Match the column A, B and C by identifying the correctchemical formulae and the use of the salts.SaltChemical formulaUseWashing sodaCuSO, 51,0Fire extinguisherGypsumNaHCO,FungicideBlue vitriolNa, CO,.10H,Omanufacture ofCementBaking sodaCaSO2.2H20manufacture ofGlass

Answer»

ANSWER:

sgshshsgsgsjshshbsbsnshshsbsbsb

Discussion

15.	A ball is dropped from a tower of height 19.6m . Find itsspeed when it just touches the ground.
Answer» ANSWER: *Here* is *your* *answer. Explanation:* HOPE IT HELP'S...........

15.

A ball is dropped from a tower of height 19.6m . Find itsspeed when it just touches the ground.

Answer»

ANSWER:

Here is your answer.

Explanation:

HOPE IT HELP'S...........

Discussion

16.	An electric current can produce(a) heating effect(b) chemical effect© magnetic effect(d) all of these
Answer» Answer: HEATING EFFECT Explanation: because an ELECTRIC current can PRODUCE only heating effect

16.

An electric current can produce(a) heating effect(b) chemical effect© magnetic effect(d) all of these

Answer»

Answer:

HEATING EFFECT

Explanation:

because an ELECTRIC current can PRODUCE only heating effect

Discussion

17.	Iron is _________. * 1) more reactive than zinc2) less reactive than copper3)more reactive than aluminium4)less reactive than aluminium
Answer» ANSWER: 2) LESS REACTIVE than COPPER ...is the RIGHT answer

17.

Iron is _________. * 1) more reactive than zinc2) less reactive than copper3)more reactive than aluminium4)less reactive than aluminium

Answer»

ANSWER:

2) LESS REACTIVE than COPPER ...is the RIGHT answer

Discussion

18.	Rearrange the given word clusters to make meaningful sentences.Example : May/ a/ dishonest/ man/ succeed/ temporarily A dishonest man may succeed temporarily.(a) in / the / lose / he / will/ long/ run (b) surest / in / life / to / success / way / is the / honesty / achieve
Answer» a) he will lose in the long run. b) HONESTY is the SUREST way to achieve success in life. *mark* me *the* *BRAINLIEST* XO

18.

Rearrange the given word clusters to make meaningful sentences.Example : May/ a/ dishonest/ man/ succeed/ temporarily A dishonest man may succeed temporarily.(a) in / the / lose / he / will/ long/ run (b) surest / in / life / to / success / way / is the / honesty / achieve

Answer»

a) he will lose in the long run.

b) HONESTY is the SUREST way to achieve success in life.

mark me the BRAINLIEST XO

Discussion

19.	Answer any one question.1) Observe the following diagram and answer the following questions,- F -a) In which telescope this type of arrangement of lenses are used?b) Explain in brief the working of this telescope.c) How different types of magnification is obtained?d) Draw the diagram and label it.
Answer» ANSWER: hr9eeire7eue7ey39egfbb

19.

Answer any one question.1) Observe the following diagram and answer the following questions,- F -a) In which telescope this type of arrangement of lenses are used?b) Explain in brief the working of this telescope.c) How different types of magnification is obtained?d) Draw the diagram and label it.

Answer»

ANSWER:

hr9eeire7eue7ey39egfbb

Discussion

20.	2.खाली दिलेल्या आपत्तींच्या वेळेस लष्कराने जनतेला काय मदत केली हे शोधून काढा व त्या प्रत्येक घटनेव-माहिती मिळवा, चर्चा करा आणि टिपण लिहा.i. गुजरातमधील भूकंप (२००१)- बाधित क्षेत्र : भूज, अहमदाबाद, गांधी नगर, कच्छ, सुरत, सुरेद्रनगर जिल्हराजकोट जिल्हा, जामनगर आणि जोधिया.
Answer» ANSWER: ASK in ENGLISH PLEASE....

20.

2.खाली दिलेल्या आपत्तींच्या वेळेस लष्कराने जनतेला काय मदत केली हे शोधून काढा व त्या प्रत्येक घटनेव-माहिती मिळवा, चर्चा करा आणि टिपण लिहा.i. गुजरातमधील भूकंप (२००१)- बाधित क्षेत्र : भूज, अहमदाबाद, गांधी नगर, कच्छ, सुरत, सुरेद्रनगर जिल्हराजकोट जिल्हा, जामनगर आणि जोधिया.

Answer»

ANSWER:

ASK in ENGLISH PLEASE....

Discussion

21.	3.6 Critically discuss how fraud and corruption may negatively impact economicgrowth and development of a country.(2X4)
Answer» ANSWER: by stop BELIEVING all the unfare and unbelievable things we can stop such FRAUDS

21.

3.6 Critically discuss how fraud and corruption may negatively impact economicgrowth and development of a country.(2X4)

Answer»

ANSWER:

by stop BELIEVING all the unfare and unbelievable things we can stop such FRAUDS

Discussion

22.	3.3 Indicate why it is important to follow a course or a program in keeping with yourvalue system(4x1) (4)
Answer» ANSWER: Our VALUES inform our thoughts, words, and actions. Our values are important because they help us to grow and develop. They help us to create the FUTURE we WANT to EXPERIENCE. Every individual and every organization is involved in making hundreds of decisions every day.

22.

3.3 Indicate why it is important to follow a course or a program in keeping with yourvalue system(4x1) (4)

Answer»

ANSWER:

Our VALUES inform our thoughts, words, and actions.

Our values are important because they help us to grow and develop. They help us to create the FUTURE we WANT to EXPERIENCE. Every individual and every organization is involved in making hundreds of decisions every day.

Discussion

23.	C. Name the following :1. Method of charging without any physical contact. 3. This is called the area of no vision. 5. This hormone is released when we exercise a lot.6. The result of fusion of sperm and an egg
Answer» *your* *answer* *｡☆✼★━━━━━━━━━━━━★✼☆｡* ➸*induction.* ➸*Blind spot* ( *also KNOWN as the optic nerve head) ➸endorphins* ➸*Fertilization* ( *Fertilization occurs when the NUCLEUS of both a sperm and an egg fuse to form a DIPLOID CELL, known as zygote. The SUCCESSFUL fusion of gametes forms a new organism.) hope* *this* *helps*

23.

C. Name the following :1. Method of charging without any physical contact. 3. This is called the area of no vision. 5. This hormone is released when we exercise a lot.6. The result of fusion of sperm and an egg

Answer»

your answer

｡☆✼★━━━━━━━━━━━━★✼☆｡

➸induction.

➸Blind spot ( also KNOWN as the optic nerve head)

➸endorphins

➸Fertilization ( Fertilization occurs when the NUCLEUS of both a sperm and an egg fuse to form a DIPLOID CELL, known as zygote. The SUCCESSFUL fusion of gametes forms a new organism.)

hope this helps

Discussion

24.	What is the last step followed by letting the paper bowl dried and cut the edges to neat shape? *Design and paint your paper bowl? Dip the paper strips into the paste
Answer» Answer: g 3 and friends and family and friends and family and friends and family and ty beanie BABIES in anew with the EXPLANATION: hsgsggssfgs and friends and family and friends and family and friends and family and friends and family and I have to you SOON ❤️ and your family

24.

What is the last step followed by letting the paper bowl dried and cut the edges to neat shape? *Design and paint your paper bowl? Dip the paper strips into the paste

Answer»

Answer:

g 3 and friends and family and friends and family and friends and family and ty beanie BABIES in anew with the

EXPLANATION:

hsgsggssfgs and friends and family and friends and family and friends and family and friends and family and I have to you SOON ❤️ and your family

Discussion

25.	Example 3.5 Calculate the number ofparticles in each of thefollowing:(i) 46 g of Na atoms (number frommass)
Answer» Answer: 46 G of NA atoms Explanation: The NUMBER of atoms =given mass/molar mass× AVOGADRO number ⇒N=m/M× $No$ ⇒N=4623×6.022× $10^{23}$ ⇒N=12.044× $10^{23}$

25.

Example 3.5 Calculate the number ofparticles in each of thefollowing:(i) 46 g of Na atoms (number frommass)

Answer»

Answer:

46 G of NA atoms

Explanation:

The NUMBER of atoms

=given mass/molar mass× AVOGADRO number

⇒N=m/M× $No$

⇒N=4623×6.022× $10^{23}$

⇒N=12.044× $10^{23}$

Discussion

26.	A)Heat is transformed from where to where?b) Which principal do we learn about from this process?c)How will you state the principal briefly?d) Which property of the substance is measured using this principal
Answer» ANSWER: COLD and. HOT object Explanation: heat is TRANSFORMED from between cold and hot body

26.

A)Heat is transformed from where to where?b) Which principal do we learn about from this process?c)How will you state the principal briefly?d) Which property of the substance is measured using this principal

Answer»

ANSWER:

COLD and. HOT object

Explanation:

heat is TRANSFORMED from between cold and hot body

Discussion

27.	Visually impaired people can read and write using(a) electronic writer(b) digital pens© braille system(d) hearing aids
Answer» ANSWER: EXPLANATION: BRAILLE SYSTEM

27.

Visually impaired people can read and write using(a) electronic writer(b) digital pens© braille system(d) hearing aids

Answer»

ANSWER:

EXPLANATION:

BRAILLE SYSTEM

Discussion

28.	Identify inorganic compounds from a given compound.1️⃣ Sugar2️⃣ Urea3️⃣ Camphor4️⃣ Limestone
Answer» Answer: 4 LIMESTONE in this case the one in my case of a GOOD WEEKEND of my favorite THING that you WOULD be great

28.

Identify inorganic compounds from a given compound.1️⃣ Sugar2️⃣ Urea3️⃣ Camphor4️⃣ Limestone

Answer»

Answer:

4 LIMESTONE in this case the one in my case of a GOOD WEEKEND of my favorite THING that you WOULD be great

Discussion

29.	Appreciation and depreciation are taking place due to 00000.Answer:O product pricesProduct Efficiencyofficial decisionmarket force
Answer» ANSWER: APPRECIATION and DEPRECIATION are taking PLACE due to 00000. Explanation: Answer: O product prices Product Efficiency official decision market force

29.

Appreciation and depreciation are taking place due to 00000.Answer:O product pricesProduct Efficiencyofficial decisionmarket force

Answer»

ANSWER:

APPRECIATION and DEPRECIATION are taking PLACE due to 00000.

Explanation:

Answer:

O product prices

Product Efficiency

official decision

market force

Discussion

30.	VII. Draw any 1 of the following diagram neatly andmention their parts1 X 5 = 5=9Solar eclipse orHuman skull
Answer» ANSWER: SORRY I don't KNOW answer

30.

VII. Draw any 1 of the following diagram neatly andmention their parts1 X 5 = 5=9Solar eclipse orHuman skull

Answer»

ANSWER:

SORRY I don't KNOW answer

Discussion

31.	Which of the following devices is not used for earthquake warning?1️⃣ Creep meter2️⃣ Seismograph3️⃣ Tide guage4️⃣ geiger counter
Answer» ANSWER: ANS is 3 gffhhffhgssfgcghhjjgfcbjiugrdfcvbhhffcvhhhggvvv

31.

Which of the following devices is not used for earthquake warning?1️⃣ Creep meter2️⃣ Seismograph3️⃣ Tide guage4️⃣ geiger counter

Answer»

ANSWER:

ANS is 3 gffhhffhgssfgcghhjjgfcbjiugrdfcvbhhffcvhhhggvvv

Discussion

32.	VII. Draw any 1 of the following diagram neatly andmention their parts1 X 5 = 5Solar eclipse orHuman skull
Answer» Answer: PLZ... lablel crop nahi HUI EXPLANATION: Mark me as BRAINLIST

32.

VII. Draw any 1 of the following diagram neatly andmention their parts1 X 5 = 5Solar eclipse orHuman skull

Answer»

Answer:

PLZ...

lablel crop nahi HUI

EXPLANATION:

Mark me as BRAINLIST

Discussion

33.	When an earthquake occurs in a place, it will be recorded by ____.1️⃣ Strainmeter2️⃣ Richter scale3️⃣ Seismometer4️⃣ Tilt meter
Answer» ANSWER: 2) RICHTER SCALE it is the CORRECT answer

33.

When an earthquake occurs in a place, it will be recorded by ____.1️⃣ Strainmeter2️⃣ Richter scale3️⃣ Seismometer4️⃣ Tilt meter

Answer»

ANSWER:

2) RICHTER SCALE

it is the CORRECT answer

Discussion

34.	Define the following term: reverberationwork energy power frequency time period wave length transverse wave langitudinal wave exoosmosis
Answer» Answer: Work:Work, in physics, measure of energy transfer that occurs when an object is MOVED over a distance by an external force at least part of which is applied in the direction of the displacement Energy:Energy, in physics, the capacity for doing work. It may EXIST in potential, kinetic, thermal, electrical, chemical, NUCLEAR, or other various form. Power:We can define power as the rate of doing work, it is the work done in unit time. Frequency:The number of oscillations per unit time is called the Frequency of the sound wave. Time taken:The time taken to complete one oscillation is known as time period. Wavelength:The distance between a continuous crest or trough is known as wavelength. it can also be denoted as lamda. Transverse wave:Transverse wave is one in which individual particles of medium move about their mean position in a direction perpendicular to the direction of wave propagation. Longitudinal Wave: The waves which travel along a spring when it is pushed and pulled at one end are longitudinal wave. Exosmosis: Exosmosis is the MOVEMENT of water outside the cells when a cell is placed in a hypertonic solution. hope it helps..

34.

Define the following term: reverberationwork energy power frequency time period wave length transverse wave langitudinal wave exoosmosis

Answer»

Answer:

Work:Work, in physics, measure of energy transfer that occurs when an object is MOVED over a distance by an external force at least part of which is applied in the direction of the displacement

Energy:Energy, in physics, the capacity for doing work. It may EXIST in potential, kinetic, thermal, electrical, chemical, NUCLEAR, or other various form.

Power:We can define power as the rate of doing work, it is the work done in unit time.

Frequency:The number of oscillations per unit time is called the Frequency of the sound wave.

Time taken:The time taken to complete one oscillation is known as time period.

Wavelength:The distance between a continuous crest or trough is known as wavelength. it can also be denoted as lamda.

Transverse wave:Transverse wave is one in which individual particles of medium move about their mean position in a direction perpendicular to the direction of wave propagation.

Longitudinal Wave: The waves which travel along a spring when it is pushed and pulled at one end are longitudinal wave.

Exosmosis: Exosmosis is the MOVEMENT of water outside the cells when a cell is placed in a hypertonic solution.

hope it helps..

Discussion

35.	What are the natural causes of water pollution?1️⃣ Disposal of floral offerings to god.2️⃣ Mixing dyes with water from leather and dairy processing industries.3️⃣ Excessive algal growth.4️⃣ Washing of clothes in river water.
Answer» WASHING of clothes in river water . OPTION 4 is correct

35.

What are the natural causes of water pollution?1️⃣ Disposal of floral offerings to god.2️⃣ Mixing dyes with water from leather and dairy processing industries.3️⃣ Excessive algal growth.4️⃣ Washing of clothes in river water.

Answer»

WASHING of clothes in river water .

OPTION 4 is correct

Discussion

36.	System?a) An asteroid b) A satellite c) A constellationd) A comet4.) Angle of incidence is equal to the angel of reflection.a) always b) Sometimesc) Under special conditions d) NeverQ.2:- Fill in the blanks : (05)1.) Friction depends on the.... of surfaces.2.) The unit of frequency of is3.) Cholera is caused by4.) A charged bodyan uncharged body towards it.5.) Burning of wood and coal causesof air.7. Yery short answer type questions: (any-5) (5)lied fos
Answer» Answer: question is the fact of life than the BEST way to do this in 6AM is the most popular THING to say about the world and it was just a little different in my life than the ONE that was the same way as she was BORN 3in I am 3in to the relationship I want but I have no idea how to take her FANS off of her FRIENDS and I would like to say about her birthday and her birthday is MAQAVI but I have been in the same way that I was so happy that 3she and prachi will be happy and a

36.

System?a) An asteroid b) A satellite c) A constellationd) A comet4.) Angle of incidence is equal to the angel of reflection.a) always b) Sometimesc) Under special conditions d) NeverQ.2:- Fill in the blanks : (05)1.) Friction depends on the.... of surfaces.2.) The unit of frequency of is3.) Cholera is caused by4.) A charged bodyan uncharged body towards it.5.) Burning of wood and coal causesof air.7. Yery short answer type questions: (any-5) (5)lied fos

Answer»

Answer:

question is the fact of life than the BEST way to do this in 6AM is the most popular THING to say about the world and it was just a little different in my life than the ONE that was the same way as she was BORN 3in I am 3in to the relationship I want but I have no idea how to take her FANS off of her FRIENDS and I would like to say about her birthday and her birthday is MAQAVI but I have been in the same way that I was so happy that 3she and prachi will be happy and a

Discussion

37.	2.) Reproa) By budding b) By binary fission c) By fissiond) By grafting3.) Which of the following is not a member of the solarsystem?a) An asteroid b) A satellite c) A constellationd) A comet4.) Angle of incidence is equal to the angel of reflection,a) always b) Sometimesc) Under special conditions d) NeverQ.2:- Fill in the blanks : (05)1.) Friction depends on theof surfaces.2.) The unit of frequency of isused by
Answer» ANSWER: 3 KA answer is comet 4 ka answer is ALWAYS EQUAL

37.

2.) Reproa) By budding b) By binary fission c) By fissiond) By grafting3.) Which of the following is not a member of the solarsystem?a) An asteroid b) A satellite c) A constellationd) A comet4.) Angle of incidence is equal to the angel of reflection,a) always b) Sometimesc) Under special conditions d) NeverQ.2:- Fill in the blanks : (05)1.) Friction depends on theof surfaces.2.) The unit of frequency of isused by

Answer»

ANSWER:

3 KA answer is comet

4 ka answer is ALWAYS EQUAL

Discussion

38.	Given that the speed of car A and B is in the ratio 47. If the speed of car A is 320 miles/hour, then the speed of car will bemetes second
Answer» ANSWER: CORRECT OPTION is A 22 9 2 m/sec Speed=80km/hr=(80× 18 5 )m/sec=22 9 2 m/sec.

38.

Given that the speed of car A and B is in the ratio 47. If the speed of car A is 320 miles/hour, then the speed of car will bemetes second

Answer»

ANSWER:

CORRECT OPTION is

A

22

9

2

m/sec

Speed=80km/hr=(80×

18

5

)m/sec=22

9

2

m/sec.

Discussion

39.	Polluted water affects humans in which of the following ways?1️⃣ Deformities in bones2️⃣ Respiratory disorders3️⃣ Psychosis4️⃣ Insomnia
Answer» i THINK 2 (RESPIRATORY diorders ) is CORRECT...

39.

Polluted water affects humans in which of the following ways?1️⃣ Deformities in bones2️⃣ Respiratory disorders3️⃣ Psychosis4️⃣ Insomnia

Answer»

i THINK 2 (RESPIRATORY diorders ) is CORRECT...

Discussion

40.	Q27.What is the position and nature of the image formation in convex lens if the object isplaced (a) beyond 2F, (b) Between principal focus and lens.
Answer» ANSWER: OK my DEAR krishna u can CALL me that... BORAHAE

40.

Q27.What is the position and nature of the image formation in convex lens if the object isplaced (a) beyond 2F, (b) Between principal focus and lens.

Answer»

ANSWER:

OK my DEAR krishna

u can CALL me that...

BORAHAE

Discussion

41.	7. Differe1. Polyester is used to make waterproofbandages to cover wounds. T2. Synthetic fibres have high water absorptiona. Natpl.b. Thecapacity3. Synthetic fibres like nylon and polyester HOTare not attacked by moths4. It is very uncomfortable to wear synthetic 1 I. Bothfirbes in summers. TThen5. Thermosetting plastics once moulded cannot 2. Plastbe heated and recast into another shape.WOO
Answer» Answer: 7. Differe 1. POLYESTER is used to make waterproof bandages to cover wounds. T 2. Synthetic fibres have HIGH water absorption a. Nat pl. b. The capacity Explanation: 3. Synthetic fibres like nylon and polyester HOT are not attacked by moths 4. It is very uncomfortable to wear synthetic 1 I. Both firbes in summers. T Then 5. Thermosetting plastics once moulded cannot 2. Plast be HEATED and RECAST into another shape. WOO

41.

7. Differe1. Polyester is used to make waterproofbandages to cover wounds. T2. Synthetic fibres have high water absorptiona. Natpl.b. Thecapacity3. Synthetic fibres like nylon and polyester HOTare not attacked by moths4. It is very uncomfortable to wear synthetic 1 I. Bothfirbes in summers. TThen5. Thermosetting plastics once moulded cannot 2. Plastbe heated and recast into another shape.WOO

Answer»

Answer:

7. Differe

1. POLYESTER is used to make waterproof

bandages to cover wounds. T

2. Synthetic fibres have HIGH water absorption

a. Nat

pl.

b. The

capacity

Explanation:

3. Synthetic fibres like nylon and polyester HOT

are not attacked by moths

4. It is very uncomfortable to wear synthetic 1 I. Both

firbes in summers. T

Then

5. Thermosetting plastics once moulded cannot 2. Plast

be HEATED and RECAST into another shape.

WOO

Discussion

42.	Which of the following does not belong to the family of solar system?(a) Planet(b) Galaxy© Meteors(d)comet
Answer» ANSWER: C and d Explanation: METEORS and COMET

42.

Answer»

ANSWER:

C and d

Explanation:

METEORS and COMET

Discussion

43.	Mark -Time :- 3 Hours-Sub:- ScienceClass - 8thNote:- All questions are compulsory.2.1:- Choose the correct answer:- (05)1.) Process of removing weed is -a) Cutting b) Weeding c) Storage d) Winnowing2.) Reproduction in hydra takes place.a) By budding b) By binary fissionc) By fissiond) By grafting) Which of the following is not a member of the solarsystem?a) An asteroid b) A satellitec) A constellation
Answer» ANSWER: All The BEST For SCIENCE EXAM

43.

Mark -Time :- 3 Hours-Sub:- ScienceClass - 8thNote:- All questions are compulsory.2.1:- Choose the correct answer:- (05)1.) Process of removing weed is -a) Cutting b) Weeding c) Storage d) Winnowing2.) Reproduction in hydra takes place.a) By budding b) By binary fissionc) By fissiond) By grafting) Which of the following is not a member of the solarsystem?a) An asteroid b) A satellitec) A constellation

Answer»

ANSWER:

All The BEST For SCIENCE EXAM

Discussion

44.	09. A lead ball and a snowball of identical radii are released from a certain height(1)in a vacuum. The time taken by both of them to reach the ground will bea) exactly equalb) unequalc) roughly equald) In the ratio of the density of lead and snow
Answer» ANSWER: in the RATIO of the DENSITY of LEAD and SNOW

44.

09. A lead ball and a snowball of identical radii are released from a certain height(1)in a vacuum. The time taken by both of them to reach the ground will bea) exactly equalb) unequalc) roughly equald) In the ratio of the density of lead and snow

Answer»

ANSWER:

in the RATIO of the DENSITY of LEAD and SNOW

Discussion

45.	Laethe foreign investors willte given rights as the nationalsinvestors in the matter of investmentAnswersO GATTO TRIPSO TRIMSO GATS
Answer» ANSWER: PLEASE MARK as BRAINLIST

45.

Laethe foreign investors willte given rights as the nationalsinvestors in the matter of investmentAnswersO GATTO TRIPSO TRIMSO GATS

Answer»

ANSWER:

PLEASE MARK as BRAINLIST

Discussion

46.	F. Change the underline words to form correct statement :..1. Viruses can be seen by special microscope called (compound) microscope. 5. (Pitch) is the measure of amplitude of sound.
Answer» Answer: 1 VIRUSES can be seen by special compound called 2.pitch is the measure of AMPLITUDE of SOUND microscope Explanation: Hope it helps you

46.

F. Change the underline words to form correct statement :..1. Viruses can be seen by special microscope called (compound) microscope. 5. (Pitch) is the measure of amplitude of sound.

Answer»

Answer:

1 VIRUSES can be seen by special compound called

2.pitch is the measure of AMPLITUDE of SOUND microscope

Explanation:

Hope it helps you

Discussion

47.	Beings? (CBSE 2018-Write the function of the following in the human alimentary canal.(CBSE 2018-19)i) Saliva ii) HCl in Stomach iii) Bile juice iv) Villi
Answer» HCL ( hydrochloric acid ) is an POWER acid . it digest the FOOD in our stomach some times it may cause apendex also SALIVA will mix with the food and move the food particitles in the it may HELPS you plz add me as BRAINLIST

47.

Beings? (CBSE 2018-Write the function of the following in the human alimentary canal.(CBSE 2018-19)i) Saliva ii) HCl in Stomach iii) Bile juice iv) Villi

Answer»

HCL ( hydrochloric acid ) is an POWER acid .

it digest the FOOD in our stomach

some times it may cause apendex also

SALIVA will mix with the food and move the food particitles in the

it may HELPS you

plz add me as BRAINLIST

Discussion

48.	.d. What is meant by subatomicparticle? Give brief information of threesubatomic particles with reference toelectrical charge, mass and location.
Answer» Answer: The NUCLEUS CONTAINS subatomic particles: protons and neutrons. Protons are positively-charged particles. ... Surrounding the nucleus is a CLOUD of very small subatomic particles CALLED electrons. Electrons are negatively-charged particles. Explanation: please mark me as brain list

48.

.d. What is meant by subatomicparticle? Give brief information of threesubatomic particles with reference toelectrical charge, mass and location.

Answer»

Answer:

The NUCLEUS CONTAINS subatomic particles: protons and neutrons. Protons are positively-charged particles. ... Surrounding the nucleus is a CLOUD of very small subatomic particles CALLED electrons. Electrons are negatively-charged particles.

Explanation:

please mark me as brain list

Discussion

49.	4. शास्त्रीय कारणे लिहा.अ.घड्याळ दुरुस्तीमध्ये साधी सूक्ष्मदर्शीबापरतात.आ. रंगांची संवेदना व जाण फक्त प्रकाशातच होते.इ. डोळ्यापासून 25cm पेक्षा कमी अंतरावरठेचलेली वस्तू निरोगी डोळा सुस्पष्टपणे पाहूशकत नाही.
Answer» Answer: I don't KNOW Hindi EXPLANATION: GOOD luck

49.

4. शास्त्रीय कारणे लिहा.अ.घड्याळ दुरुस्तीमध्ये साधी सूक्ष्मदर्शीबापरतात.आ. रंगांची संवेदना व जाण फक्त प्रकाशातच होते.इ. डोळ्यापासून 25cm पेक्षा कमी अंतरावरठेचलेली वस्तू निरोगी डोळा सुस्पष्टपणे पाहूशकत नाही.

Answer»

Answer:

I don't KNOW Hindi

EXPLANATION:

GOOD luck

Discussion

50.	Give two examples of the salts containing the water ofcrstallisation which you do know what happens when the molecules of water evapourates from the crystals?Answer me fast....
Answer» Answer: Water of CRYSTALLIZATION is the fixed number of water MOLECULES present in ONE formula unit of a salt. ... Copper sulphate has 5 molecules of water of crystallisation. Sodium CARBONATE (NA2CO3 · 10H2O) contains ten molecules of water of crystallisation. Explanation: please mark me as a brain list

50.

Give two examples of the salts containing the water ofcrstallisation which you do know what happens when the molecules of water evapourates from the crystals?Answer me fast....

Answer»

Answer:

Water of CRYSTALLIZATION is the fixed number of water MOLECULES present in ONE formula unit of a salt. ... Copper sulphate has 5 molecules of water of crystallisation. Sodium CARBONATE (NA2CO3 · 10H2O) contains ten molecules of water of crystallisation.

Explanation:

please mark me as a brain list

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

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Given:-

To Prove:-

Proof:-

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your answer

hope this helps

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Identify bacterial sexually transmitted diseasesa) AIDSb) Syphilis c) Gonerrhead) Both B and C

(b) State any 2 factors on whichthe strength of magneticfield, for a circularloop depends?

Which of the following is an electrol(a) Sugar(b) Alcohol(c) Sulphuric acid (d) KeroseneThe solution that conducts electricit

D. A stone thrown vertically upwards with initial velocity u reaches a height 'h' before coming down. Show that the time taken to go up is same as the time taken to come down.

Mountaineers carry oxygen cylinder with them because:a. the air is very cold up the mountain b. there is less amount of oxygen in the air at the top of mountainc. they feel happy curring the the oxygen ccylinderd. oxygen is required for burning

PWMLILIUMWhy this arrangement of elements is similar to the above period of modern periodictable?

3.3 Indicate why it is important to follow a course or a program in keeping with yourvalue system.(4x1) (4)

Carbon dioxide ___________ *1) turns lime water milky2) is odourless3) is colourless4) all of the above

1 point19. Complete the series-Gravitational pull: Tide ::Shadow in the universe:O EclipseO High tideOLow tideO Translucent object

(5x1=5marks)I. Choose the correct option.1. Which one is a unit of mass?a) gram b) degree c) centimetred) Inch2 A fixed amanthathat

Match the following (1x5=5)A B16. Reticulate venation Mango17. skull Fibrous root18. shrub Fixed Joint19. Ears Tap root20. Parallel venation Lemon Cartilage

Write reactions for the following.a) When methane is treated with chlorine gas.b) When sodium hydroxide is treated with carbon dioxide. c) When methane is burn in presence of oxygen.

Pure or distilled water is a(a) poor conductor(b) good conductor© both (a) and (b)(d) none of these8.Sound is a kind of(a) work(b) energy© force(d) pressure

6.Match the column A, B and C by identifying the correctchemical formulae and the use of the salts.SaltChemical formulaUseWashing sodaCuSO, 51,0Fire extinguisherGypsumNaHCO,FungicideBlue vitriolNa, CO,.10H,Omanufacture ofCementBaking sodaCaSO2.2H20manufacture ofGlass

A ball is dropped from a tower of height 19.6m . Find itsspeed when it just touches the ground.

An electric current can produce(a) heating effect(b) chemical effect© magnetic effect(d) all of these

Iron is _________. * 1) more reactive than zinc2) less reactive than copper3)more reactive than aluminium4)less reactive than aluminium

Rearrange the given word clusters to make meaningful sentences.Example : May/ a/ dishonest/ man/ succeed/ temporarily A dishonest man may succeed temporarily.(a) in / the / lose / he / will/ long/ run (b) surest / in / life / to / success / way / is the / honesty / achieve

3.3 Indicate why it is important to follow a course or a program in keeping with yourvalue system(4x1) (4)

C. Name the following :1. Method of charging without any physical contact. 3. This is called the area of no vision. 5. This hormone is released when we exercise a lot.6. The result of fusion of sperm and an egg

What is the last step followed by letting the paper bowl dried and cut the edges to neat shape? *Design and paint your paper bowl? Dip the paper strips into the paste

Example 3.5 Calculate the number ofparticles in each of thefollowing:(i) 46 g of Na atoms (number frommass)

A)Heat is transformed from where to where?b) Which principal do we learn about from this process?c)How will you state the principal briefly?d) Which property of the substance is measured using this principal

Visually impaired people can read and write using(a) electronic writer(b) digital pens© braille system(d) hearing aids

Identify inorganic compounds from a given compound.1️⃣ Sugar2️⃣ Urea3️⃣ Camphor4️⃣ Limestone

Appreciation and depreciation are taking place due to 00000.Answer:O product pricesProduct Efficiencyofficial decisionmarket force

VII. Draw any 1 of the following diagram neatly andmention their parts1 X 5 = 5=9Solar eclipse orHuman skull

Which of the following devices is not used for earthquake warning?1️⃣ Creep meter2️⃣ Seismograph3️⃣ Tide guage4️⃣ geiger counter

VII. Draw any 1 of the following diagram neatly andmention their parts1 X 5 = 5Solar eclipse orHuman skull

When an earthquake occurs in a place, it will be recorded by ____.1️⃣ Strainmeter2️⃣ Richter scale3️⃣ Seismometer4️⃣ Tilt meter

Define the following term: reverberationwork energy power frequency time period wave length transverse wave langitudinal wave exoosmosis

What are the natural causes of water pollution?1️⃣ Disposal of floral offerings to god.2️⃣ Mixing dyes with water from leather and dairy processing industries.3️⃣ Excessive algal growth.4️⃣ Washing of clothes in river water.

Given that the speed of car A and B is in the ratio 47. If the speed of car A is 320 miles/hour, then the speed of car will bemetes second

Polluted water affects humans in which of the following ways?1️⃣ Deformities in bones2️⃣ Respiratory disorders3️⃣ Psychosis4️⃣ Insomnia

Q27.What is the position and nature of the image formation in convex lens if the object isplaced (a) beyond 2F, (b) Between principal focus and lens.

Which of the following does not belong to the family of solar system?(a) Planet(b) Galaxy© Meteors(d)comet

09. A lead ball and a snowball of identical radii are released from a certain height(1)in a vacuum. The time taken by both of them to reach the ground will bea) exactly equalb) unequalc) roughly equald) In the ratio of the density of lead and snow

Laethe foreign investors willte given rights as the nationalsinvestors in the matter of investmentAnswersO GATTO TRIPSO TRIMSO GATS

F. Change the underline words to form correct statement :..1. Viruses can be seen by special microscope called (compound) microscope. 5. (Pitch) is the measure of amplitude of sound.

Beings? (CBSE 2018-Write the function of the following in the human alimentary canal.(CBSE 2018-19)i) Saliva ii) HCl in Stomach iii) Bile juice iv) Villi

.d. What is meant by subatomicparticle? Give brief information of threesubatomic particles with reference toelectrical charge, mass and location.

Give two examples of the salts containing the water ofcrstallisation which you do know what happens when the molecules of water evapourates from the crystals?Answer me fast....