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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your Science knowledge and support exam preparation. Choose a topic below to get started.
| 4751. |
2عe mدمعا لمعهDeine W oh potes teal therence from Lehm's law. brauIgraph between LP and doctric |
| Answer» <p>Ohm's lawstates that thecurrentthrough aconductorbetween two points is directlyproportionalto thevoltageacross the two points. Introducing the constant of proportionality, theresistance,[1]one arrives at the usual mathematical equation that describes this relationship:[2]</p><p>{\displaystyle I={\frac {V}{R}},}</p><p>whereIis the current through the conductor in units ofamperes,Vis the voltage measuredacrossthe conductor in units ofvolts, andRis theresistanceof the conductor in units ofohms. More specifically, Ohm's law states that theRin this relation is constant, independent of the current.[3]Ohm's law is anempirical relationwhich accurately describes the conductivity of the vast majority ofelectrically conductive materialsover many orders of magnitude of current. However some materials do not obey Ohm's law, these are callednon-ohmic.</p><p>The law was named after the German physicistGeorg Ohm, who, in a treatise published in 1827, described measurements of applied voltage and current through simple electrical circuits containing various lengths of wire. Ohm explained his experimental results by a slightly more complex equation than the modern form above (seeHistory).</p><p>In physics, the termOhm's lawis also used to refer to various generalizations of the law; for example thevectorform of the law used inelectromagneticsand material science:</p><p>{\displaystyle \mathbf {J} =\sigma \mathbf {E} ,}</p><p>whereJis thecurrent densityat a given location in a resistive material,Eis the electric field at that location, andσ(sigma) is a material-dependent parameter called theconductivity. This reformulation of Ohm's law is due toGustav Kirchhoff.[4]</p> | |
| 4752. |
3. Can you think of creating a shape that would give a circular shadowiheldinone way and a rectangular shadow if held in another way?In a completely dark room. if you hold up a mirror in front of you, will you see areflection of yourself in the mirror?4. |
| Answer» <p>3. Cylinder gives a circular shadow when illuminated from the circular face and rectangular shadow when illuminated from the lateral side.</p> | |
| 4753. |
4 In a completely dark room, if you hold up a mirror in front of you will you see areflection ol yourself in the mirror? |
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| 4754. |
How will you show that air supports burning? |
| Answer» <p>Take a small burning candle. Cover the burning candle with a glass jar. After few minutes the candle is extinguished. As the supply of air is stopped due to glass jar the burning of candle is also stopped. This experiment proves that air supports burning</p> | |
| 4755. |
verage rate of water consumption perhead per day as per Indian Standard isa) 100 litresb) 135 litresc) 165 litresd) 200 litres |
| Answer» <p>BIS Standard IS:1172–1993 explains water consumption practices and norms for various uses. Also as reported in some other places, it is considered that the specific water consumption in India is around 145 lit per person per day.</p> | |
| 4756. |
2, A farmer moves alorig theboundary of a square field of side10 m in 40 s. What will be themagnitude of displacemert of thefarmer at the end of 2 minutes 20seconds from his initial position? |
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| 4757. |
2. When an electric current is passed through a solenoid, it acts as alan.(a) Insulator(b) Electric bell(c) Bar magnet(d) Resistor |
| Answer» <p>Then the solenoid acts as a bar magnet</p> | |
| 4758. |
To what height should a box of mass 150 kg be lifted, so that its potential energy may become 7350 joules?g 9.8 m/s2). |
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| 4759. |
Whom to consult?tify the kind of doctor whom you tuill consult if you have ablent with these body parts. Choose our users from the help box.1. You have severe pain in your legs and yourmother thinks you have broken one of your boneswhile playing football which doctor would youconsult?2. You find it difficult to read what the teacherwrites on the board, and the teacher has askedyou to get your eyes checked. Which doctorwould you consult?3. You have crooked teeth. Which doctorwould you consult?4. Your father has red rashes on his skin. Whichdoctor should he consult?5. Your grandfather often complains of extremtiredness and discomfort in his chest. Whichdoctor should he consult? _ophthalmologistdermatologistcardiologistorthodontistorthopaedic surgeon |
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| 4760. |
conatins 11.1% moe neuuAn ion with mass number 56 contains 3 units of positive charge and 30.4% morennidn the symhol to this ion. |
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| 4761. |
(a) Write a pair of negative integers whose difference gives 8.da positive integer whose sum is |
| Answer» <p>required pair is -4 and -12</p> <p>-4and -12 is the correct answer of the given question</p> <p>-2 and -10 is the pair of negative numbers whose difference is 8 </p><p>Check =-2-(-10) = -2+10 = 8 </p> <p>-8 -(-16) is also correct</p> <p>-8+16 is the opposite pair of integer which give 8 as answer</p> <p>-4--12 after solving it we get answer</p> | |
| 4762. |
u pleUn) 1B) Hellum; (c) Argon.What kind of land would we have if the top soil getwashed off?(a) Barren land; (b) Fertile land; (c) Desert;(4) |
| Answer» <p>the removal of top layer would cause desertification of that area and hence the land would become a desert.</p> | |
| 4763. |
What is the ratio of mass of Wcompound, which is made up of onsoxygen atom and two hydrogen atomsI) 1 23) 1: 82) 8:14) 2:1 |
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| 4764. |
Order of base strength of the compoundsCH2 NH2□□(a) IV(c) II > III>IV>I(b) III> Il > IV >,I(d) II> IH> I> IV D>II>I > III |
| Answer» <p>option B is correct.</p><p>strong acid forms weaker base </p><p>and COOH is stronger acid than Ph-OH , so its conjugate base will be Ph-O- > COO- </p> <p>This is due to lone pair on the nitrogen and extra -ve charge. </p><p>so iii> ii</p> <p>but due to less Electronegativity C with -ve charge is a better donor</p> <p>then may be its an exception.. you can't do much but accepting the fact </p> | |
| 4765. |
F. Numerical Questions1. A fish swims across the width of an 18 m wide river in 6 s. What is the speed of the fish? A Santro cor tr |
| Answer» <p>speed =distance/timehencespeed=18/6=3m/s</p> | |
| 4766. |
2The diagram below shows a generalized cycleows a generalized cycle in sexual reproduction,Parent cellDivision 1Division 2What is the correct number of chromosomes present in each cell at Division 1this diagram?234692Copying is strictly prohibited by lawtly prohibited by law. I,173& Educational Bootcamp7800790440mages |
| Answer» <p>the answer would be option C - 46.</p> <p>the ans is 46 chromosomes </p> <p>the correct answer is C)</p> | |
| 4767. |
8m/s. Find angutarG-2. A particle having mass 2 kg is moving along straight line 3x + 4y 5 with speedmomentum of the particle about origin. x and y are in meters. |
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| 4768. |
. Ma'am, this is known to all that allthe religions are equal then what isthe characteristic of secularism? |
| Answer» <p>Secularismis to create a society in which people of all religions or people who don't belong to any religion can live together peacefully. It says that no one shall be subject to discrimination by any State, institution, group of persons, or person on grounds of religion or other beliefs.</p> <p>ya..</p><p>ans will u get</p> <p>above ans is right</p><p>given by danjsh</p> | |
| 4769. |
Advantages of Vegetative Propagation1. Itis a quick methodof muui. |
| Answer» <p>The mainadvantage of vegetative propagationmethods is that the new plants contain the genetic material of only one parent, so they are essentially clones of the parent plant.</p> | |
| 4770. |
uestions1. Why do we classtfy organisms2. Give three examples of the rarof variations that you see in lforms around you. |
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| 4771. |
(a) What is the flow of electric charge called? |
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| 4772. |
Reaction of ammonia with heated copper oxide |
| Answer» <p>When gaseous ammonia is passed over solid copper(II)oxide at high temperatures, nitrogen gas is formed.</p><p>2NH3(g)+3CuO(s)=N2(g)+3Cu(s)+3H2O(g)</p><p>AlsoThis N2 gas is not pure as it would be in the heating of NaN3 like compounds.</p> | |
| 4773. |
nature.te a balanced chemical equation for each of the folf ammonia with heated copper oxide.ction of cold and dilute nitric acid on copperdomethane |
| Answer» <p>2 HNO3 + Cu gives Cu(NO3)2 + H2Gas evolved is hydrogen</p> | |
| 4774. |
Calculate the power of the pump which can lift 100 kg of water to store in a water tank atthe height of 19 m in 25 sec. (take the value of g-10 m/ )Describe two methods used to reduce the friction between two surfaces. |
| Answer» <p>Power=work/time</p><p>Work(in this case)=mgh(work done=energy consumed)</p><p>Because we need to raise the water</p><p>So power=mgh/t</p><p>Power=100*10*19/25</p><p>Power=760W</p><p>Like my answer if you find it useful!</p> | |
| 4775. |
a body covers a distance of 500m with a speed of 15km/hr.Calculate the time taken. |
| Answer» <p>Speed = Distance/Time=> Time = Distance/Speed= 0.5/15= 0.0333 hours</p><p>Please hit the like button</p> <p>sir its wrong</p> | |
| 4776. |
A. Answer the following questions.1.What happens when-a. Hydrogen is passed over red hot copper oxide.b. Hydrogen reacts with molten sulphur.c. Zinc reacts with dilute hydrochloric acid.d. Calcium reacts with cold water |
| Answer» <p>a) Metallic copper and water vapour will be formed when hydrogen is passed over heated copper(II) oxide.</p><p>CuO + H2 = Cu + H2O</p><p>Hydrogen reduces cupric oxide to free metal in this reaction.</p><p>b) Hydrogen gas will react with molten sulfur (around 450*C) to form gaseous hydrogen sulfide, H2S. It has a characteristic smell of rotten eggs, is poisonous, flammable and corrosive. Some bacteria in our gut will produce H2S under certain circumstances.</p><p>c)Thereactionbetweenzincandhydrochloric acidisZn+HCl= H2 + ZnCl2. It is a single replacementreactionwherezincmetal displaces the hydrogen to form hydrogen gas andzincchloride, a salt.Zinc reactsquickly with the acid to form bubbles of hydrogen.</p><p>d) In the following demonstration, a chunk ofcalciummetal is dropped into a beaker of distilledwater. After a second or so, thecalciummetal begins to bubble vigorously as itreactswith thewater, producing hydrogen gas, and a cloudy white precipitate of calciumhydroxide.</p><p>Like my answer if you find it useful!</p> | |
| 4777. |
Answer the following questions:1. What are the locomotory organs of a cockroach? |
| Answer» <p>The snail moves with the help of muscularorganknown as the foot, which makes wave-like movements and secrete a slimy substance known as mucous. It enables the snail to move with ease. The thorax ofcockroachbears two pairs of wings and three pairs of jointed legs for movement</p> | |
| 4778. |
Three Mark Questions:What is alpha-decay? Give example. |
| Answer» <p>charge number means atomic number I am right</p> | |
| 4779. |
12. A person has AB blood groupBlood of which groups can he receive?What types of antigen are present on RBC?) What types of antibody are present in plasma?fiv) To persons with which blood group/groups can he donate blood? 2 |
| Answer» <p>he can receive any blood typeTypeO plasma,containingboth anti-A and anti-B antibodies, can only be given to O recipients. The antibodies will attack theantigenson any otherblood type. Conversely,ABplasma can be given to patients of any ABObloodgroup, because itdoesnotcontainany anti-A or anti-B antibodies</p> | |
| 4780. |
10^2 = 100, then log 100 is? |
| Answer» <p>log100log(10^2)2log10</p> | |
| 4781. |
A = \left[ \begin{array} { c c c } { 1 } & { 0 } & { 0 } \\ { 2 } & { 3 } & { 4 } \\ { 5 } & { - 6 } & { x } \end{array} \right] \text { and det } A = 45 , \text { then find } x |
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| 4782. |
If velocity of light is taken as unit of velocity, one year as unit of time, find the value of unit of length. What is this unit called ? |
| Answer» <p>Th answer is light year</p> | |
| 4783. |
0.7 Study the graph given below. How is the speed of the moving bodyDistanceTimegames(A) It goes on increasing(B) It first decreases then becomes zero(C) It increases then becomes constant but not zero(D) It decreases then becomes constant but not zero |
| Answer» <p>(c) the speed of body increases then becomes constant but not zero.</p> <p>(c) it is the correct answer </p> | |
| 4784. |
hesb. Tentaclesd. Setaesystem work in coordination to provide us with movement.joint.6. What isa. Pseudopodiac. Muscular footB. Fill in the blanks:Land2. Shoulder has3. Muscles are joined to bones by4. There are5. Ribs are attached to6. The7. Cockroach has8. Birds haveenpairs of ribs in human body.in the front and toat the back to form ribcage.movements are not under the control of our will.pairs of jointed appendages (legs) and wings for movement.bones andbody. |
| Answer» <p>2- 4 joints3-tendons4-12pairs</p> <p>1) nervous, skeleton 2) 43) tendons 4) 125) breastbone, spine6) some7)8) 13 bones</p> | |
| 4785. |
When light travels from a rarer to a densermedium, ita) moves away from the normalb) moves towards the normal1..c) is undeviatedd) retraces its path |
| Answer» <p>it moves away from the normal</p> | |
| 4786. |
muscles define |
| Answer» <p>muscle is a piece of tissue inside your body which connects two bones and which you use when you make a movement.</p> | |
| 4787. |
muscles of heart |
| Answer» <p>Cardiac muscle (also called heart muscle or myocardium) is one of three types of vertebrate muscles, with the other two beingskeletalandsmoothmuscles. It is an involuntary, striated muscle that constitutes the main tissue of the walls of the heart.</p> | |
| 4788. |
The fifth part of a number when increased by 3 equals its fourth part decreased by 5. Find the n |
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| 4789. |
Longest refractory period is observed in(a) Smooth muscle(c) Skeletal muscle(b) Cardiac muscle(d) of these |
| Answer» <p>The inability of the heart to generate tetanic contractions is the result of thelongabsoluterefractory periodofcardiac muscle, defined as theperiodduring and following an action potential when an excitable membrane cannot be re-excitedoption b</p> | |
| 4790. |
KgA block of mass 0.2 kg is suspendeda light string. A second block of mass 03 kg is suspendedfrom the first block through another string. Find thetensions in the two strings. Take g=10 m/s 2from the ceiling by |
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| 4791. |
4.What is the difference between voluntary and involuntary muscles? |
| Answer» <p>Musclesthat are under your conscious control are calledvoluntary muscles, whilemusclesthat are not under your conscious control are calledinvoluntary muscles.</p> | |
| 4792. |
II. Short Answer Questions.A. Give reasons.1. Different units are used to measure volume of different objects.2. Bottles or packets containing liquids have their volume marked in litre and millilitre, respectiv3. We use cm' as a unit to measure the area of an eraser. |
| Answer» <p>1) ml or L for liquid and cm^3 for solids</p><p>2)as i said ml or L for liquid thats the reason </p><p>3)thats the area formula ,so we use that</p> <p>It is a matter convenience and convention. when we talk of drinking water say, we use ml (cc) or liters or ounces or cups or glasses. all of them can be correlated with each other.when we talk of medicines.,we talk of teaspoons, drops and ml (cc) or even cap fulls. Again, there are fairly standard means of converting them from one another. </p> | |
| 4793. |
4. Which substance in the soil increases its water-holding capacity?5. Nameany twomicro and macro-organisms that are found in soil.6. How many layers or horizons are present in a soil profile?7. Write the three horizons of soil.8. State the uses of clayey soil.9. How many types of soil are found in our country?1, Which crops can be cultivated in black soil? |
| Answer» <p>4. The water holding capacity for sand is low. Soilorganicmatter (SOM)is another factor that can help increase water holding capacity. Soilorganicmatter has anaturalmagnetism to water. If the farm increases the percentage of soilorganicmatter, the soil water holding capacity will increase.5. bacteria, fungi are micro organismarthropods and earthworm6. five soil horizons7. topsoil horizon, subsoil horizon, parent material8.Clay soilisusedfor moulding.Clayis Sticky when wet and hard when dry, these feature makes it a goodsoilfor moulding in ceramics industries(moulding plates, flower vases, cups etc). ...Clay soilalso support the growth of some plants,therefore; it isusedin agriculture to produce crops9. alluvial soil, red soil, black soil, desert soil, laterite soil and mountain soil10. Blacksoilis rich in calcium, potassium and magnesium but has poor nitrogen content.Cropslike cotton, tobacco, chilly, oil seeds, jowar, ragi and maize grow well in it.</p> | |
| 4794. |
what is meaning of striation and involuntary muscle |
| Answer» <p>Muscletissue that is marked by transverse dark and light bands, that is made up of elongated fibers, and that includes skeletal and usually cardiacmuscleof vertebrates and mostmuscleof arthropods — compare smoothmuscle, voluntarymuscle.</p> | |
| 4795. |
1. Name the two sources of our food |
| Answer» <p>Agriculture and Market</p> <p>Animal : milk and meatsPlants : fruits and vegetables</p> <p>Name two source of fats </p> | |
| 4796. |
write some similarties between lubing and small intestine |
| Answer» <p>The small intestine or small bowel is an organ in the gastrointestinal tract where .... The three sections of the small intestine look similar to each other at a microscopic level, but there...</p> <p>BASIS FOR COMPARISONSMALL INTESTINELARGE INTESTINESizeSmall intestine measures around 4.5 - 7.0 m in size.Large intestine measures around 1.5 m in size.It is narrow in width of around 3.5 - 4.5 cm.It has width of around 4 - 6 cm in diameter.PartsIt has three parts, which are duodenum, jejunum and ileum.It has four parts, which are colon, rectum, caecum and anal canal.Circular foldsInternal surface of small intestine has circular folds, also called as 'palicae circulares'.Circular folds are absent.Presence of VilliVilli are present.Villi are absent.Peyers PatchesPeyers Patches are present. (aggregations of lymphoid tissue).Peyers patches are absent.Muscle bandsIt forms the layer of continuous bands of muscles around it.It is reduced to three types of muscles bands called as taeniae coli.Taeniae ColiTaenia coli is absent from the surface of small intestine.Taenia Coli are present.MotilityIt shows small movements in the abdominal cavity .Large intestine is fixed or show very little mobility.HasturaAbsentPresentEpiploic appendagesEpipolic apppedages is absent in small intestine.Epipolic appendages are present.Role in digestionDigestion is complicated.No role in digestion.Hormones SecretedNumerous hormones are secreted.No hormones are secreted.ActivityIt absorb the nutrients from the digested food.It takes part in absorption of water and electrolytes and in production of vitamins.It shows small movements in abdominal activity.It has less mobility and is largely fixed.</p> | |
| 4797. |
docs.google.com9991 point1. Which of the food items below arenot healthy and should be consumedless?Cheese BurgerSprout's saladO Chapatti with VegetablesO A bowl of cornflakes with milk2 points2. I can't be digested by your body,but help your muscles to push thefood through your intestines. Who |
| Answer» <p> cheese burger is not a healthy food </p> <p>option nuber (1)is correct answercheese Burger is an unhealthy food. </p> <p>Cheese burger should be consumed less.</p> | |
| 4798. |
Explain how digested food gets absorbed into the blood. |
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| 4799. |
The number of observations in a particular class is calleda) Width of the class17.b) Class markd) of these-C)-Frequency |
| Answer» <p>The numberof times aparticular observationoccurs in a given data iscalledits frequency. When the data are large, they can be arranged in groups and each group isknown as ClassInterval orClass</p> | |
| 4800. |
1. What are the gross motor skills? |
| Answer» <p>Gross motor skills are the abilities usually acquired during childhood as part of a child's motor learning. By the time they reach two years of age, almost all children are able to stand up, walk and run, walk up stairs, etc.</p> | |