9478 + Interview Questions in Physics Page 75 InterviewSolution

3701.	write any 3 points about ursa minor constellations ?
Answer» write any 3 points about ursa minor constellations ?

Discussion

3702.	Boiling occurs
Answer» Boiling occurs

Discussion

3703.	To go from A to town B a plane must fly about 1780km at an angle of 30^° west of north. How far northof A is B? (nearly)(2) 11452 km1542 km(4 890 km(3) 1254 kmfind
Answer» To go from A to town B a plane must fly about 1780km at an angle of 30^° west of north. How far northof A is B? (nearly)(2) 11452 km1542 km(4 890 km(3) 1254 kmfind

Discussion

3704.	root 6x square y + 2xy + root 6y + 3xy
Answer» root 6x square y + 2xy + root 6y + 3xy

Discussion

3705.	Four objects of the same weight(8 N) are pushed with the same force. Which object will go the farthest?
Answer» Four objects of the same weight(8 N) are pushed with the same force. Which object will go the farthest?

Discussion

3706.	Two blocks of masses 1 kg and 2 kg are placed on a horizontal x-y plane such that the 1 kg block is placed on the norther end and 2 kg block on the souther end separated by a dis†an ce of L= 2 metres. Coefficient of friction between 1 kg and ground is 0.2 while coefficient of friction between 2 kg and ground is zero. At an ins†an t velocity, v= 2 m/s perpendicular to length is given to 2 kg block. Find frictional acting on 1 kg block just at this ins†an t(g=10m/s^2)
Answer» Two blocks of masses 1 kg and 2 kg are placed on a horizontal x-y plane such that the 1 kg block is placed on the norther end and 2 kg block on the souther end separated by a dis†an ce of L= 2 metres. Coefficient of friction between 1 kg and ground is 0.2 while coefficient of friction between 2 kg and ground is zero. At an ins†an t velocity, v= 2 m/s perpendicular to length is given to 2 kg block. Find frictional acting on 1 kg block just at this ins†an t(g=10m/s^2)

Discussion

3707.	Question 1 (a) Fill in the blank: An image that cannot be obtained on a screen is called as a ___ .
Answer» Question 1 (a) Fill in the blank: An image that cannot be obtained on a screen is called as a ___ .

Discussion

3708.	A coil of insulated copper wire is connected to a galvanometer. What would happen if a bar magnet is:1. Pushed into the coil?2. Withdrawn from inside the coil?3. Held stationary inside the coil? [3 MARKS]
Answer» A coil of insulated copper wire is connected to a galvanometer. What would happen if a bar magnet is: 1. Pushed into the coil? 2. Withdrawn from inside the coil? 3. Held stationary inside the coil? [3 MARKS]

Discussion

3709.	650 g + 350 g = _____ kg
Answer» 650 g + 350 g = _____ kg

Discussion

3710.	How do you find density of a substance if relative density of the substance is known
Answer» How do you find density of a substance if relative density of the substance is known

Discussion

3711.	four charge 3c,6c,3c,6c are distributed on four corners of square ABDC. the least force applied between which two particle?A. A and BB. A and CC. B and DD. D and C
Answer» four charge 3c,6c,3c,6c are distributed on four corners of square ABDC. the least force applied between which two particle? A. A and B B. A and C C. B and D D. D and C

Discussion

3712.	3.Relative permitivity and permeability of material are epsilon and u respectively.which of the following values of these quantities are allowed for diamagnetic material
Answer» 3.Relative permitivity and permeability of material are epsilon and u respectively.which of the following values of these quantities are allowed for diamagnetic material

Discussion

3713.	A particle is dropped from top of a tower. During its motion it covers 9/25 part of tower in last 1 sec. Find height of tower.
Answer» A particle is dropped from top of a tower. During its motion it covers 9/25 part of tower in last 1 sec. Find height of tower.

Discussion

3714.	If a surface is smoothened, how will it affect friction?
Answer» If a surface is smoothened, how will it affect friction?

Discussion

3715.	When travelling obliquely from one medium to another medium, the direction of light rays in the second medium ___.
Answer» When travelling obliquely from one medium to another medium, the direction of light rays in the second medium ___.

Discussion

3716.	Find the dimension of k in the following;Y=Asinω(x/v-k)Here,ω=angular velocityv=linear velocity
Answer» Find the dimension of k in the following; Y=Asinω(x/v-k) Here, ω=angular velocity v=linear velocity

Discussion

3717.	(n + 1)2 - n2 =
Answer» (n + 1)² - n² =

Discussion

3718.	Why was Dad sure he wouldn’t fall?
Answer» Why was Dad sure he wouldn’t fall?

Discussion

3719.	41.a spring having a force constant k is divided into three equal parts. what would be force constant for each individual parts?
Answer» 41.a spring having a force constant k is divided into three equal parts. what would be force constant for each individual parts?

Discussion

3720.	what is instantaneous acceleration
Answer» what is instantaneous acceleration

Discussion

3721.	Pritish pulls a load up an inclined road. What is/are the force(s) he must overcome to pull it up?
Answer» Pritish pulls a load up an inclined road. What is/are the force(s) he must overcome to pull it up?

Discussion

3722.	Suppose that a mothball loses volume by evaporation at a rate proportional to its instantaneous area. If the diameter of the ball decreases from 2cm to 1cm in 3 months, how long(in months) will it take so the ball has practically gone
Answer» Suppose that a mothball loses volume by evaporation at a rate proportional to its instantaneous area. If the diameter of the ball decreases from $2$ cm to $1$ cm in $3$ months, how long(in months) will it take so the ball has practically gone

Discussion

3723.	Name the apparatus which is used to obtain a thin beam of light.
Answer» Name the apparatus which is used to obtain a thin beam of light.

Discussion

3724.	Question 8A child staying in a coastal region tests the drinking water and also the seawater with his tester. He finds that the compass needle deflects more in the case of seawater. Can you explain the reason?
Answer» Question 8 A child staying in a coastal region tests the drinking water and also the seawater with his tester. He finds that the compass needle deflects more in the case of seawater. Can you explain the reason?

Discussion

3725.	State the speed of light in (a) air, (b) water, and (c) glass.
Answer» State the speed of light in (a) air, (b) water, and (c) glass.

Discussion

3726.	What should we do if something like a dust particle or an insect gets into our eye?
Answer» What should we do if something like a dust particle or an insect gets into our eye?

Discussion

3727.	a ray reflected in turn by three plane mirrors mutually at right angles to each other.the angle between incident ray and reflected ray i
Answer» a ray reflected in turn by three plane mirrors mutually at right angles to each other.the angle between incident ray and reflected ray i

Discussion

3728.	Ramesh buys six bottles of syrup, each containing 1 litre. Each empty bottle weighs 400g. The density of the syrup is 1.2g/cm3. What weight does Ramesh have to carry home?
Answer» Ramesh buys six bottles of syrup, each containing 1 litre. Each empty bottle weighs 400g. The density of the syrup is $1.2 g / c m^{3}$ . What weight does Ramesh have to carry home?

Discussion

3729.	Nine wires each of resistance r=5 Ω are connected to make a prism as shown in figure. The equivalent resistance of the arrangement across AB (in Ω) will be :
Answer» Nine wires each of resistance $r = 5 Ω$ are connected to make a prism as shown in figure. The equivalent resistance of the arrangement across $AB ($ in $Ω)$ will be :

Discussion

3730.	Question 7 (a)Identify the part which vibrates to produce sound in the following instruments.(a) Dholak (b) Sitar (c) Flute
Answer» Question 7 (a) Identify the part which vibrates to produce sound in the following instruments. (a) Dholak (b) Sitar (c) Flute

Discussion

3731.	7. If a=9-45,find value of a-1/a
Answer» 7. If a=9-45,find value of a-1/a

Discussion

3732.	Short note on turning effect of force about 300 to 400 words
Answer» Short note on turning effect of force about 300 to 400 words

Discussion

3733.	An inflated balloon is rubbed with a woollen cloth and in another case; a ballpen refill is rubbed with polythene. When the two are brought closer, it is observed that they attract each other. What can we understand by this?
Answer» An inflated balloon is rubbed with a woollen cloth and in another case; a ballpen refill is rubbed with polythene. When the two are brought closer, it is observed that they attract each other. What can we understand by this?

Discussion

3734.	An object at rest starts moving at a uniform acceleration of 2 ms−2. The distance travelled by it in 2 s is
Answer» An object at rest starts moving at a uniform acceleration of $2 m s^{- 2}$ . The distance travelled by it in $2 s$ is

Discussion

3735.	How do we know that a object is negatively charged or positively charged?
Answer» How do we know that a object is negatively charged or positively charged?

Discussion

3736.	Which of these is a convex mirror?
Answer» Which of these is a convex mirror?

Discussion

3737.	If you cover a hole of vessel filled with water, you will feel pressure. True or False? Justify your answer.
Answer» If you cover a hole of vessel filled with water, you will feel pressure. True or False? Justify your answer.

Discussion

3738.	How cyclones are formed in nature?
Answer» How cyclones are formed in nature?

Discussion

3739.	=9-45 then the value of +1/
Answer» =9-45 then the value of +1/

Discussion

3740.	I want to know about what do all planets contain in them
Answer» I want to know about what do all planets contain in them

Discussion

3741.	Which force keeps the members of the Solar System bound to the Sun?
Answer» Which force keeps the members of the Solar System bound to the Sun?

Discussion

3742.	5.28 A stream of water flowing horizontally with a speed of 15 m s gushes out of a tube ofcross-sectional area 102 m2, and hits a vertical wall nearby. What is the force exertedon the wall by the impact of water, assuming it does not rebound ?
Answer» 5.28 A stream of water flowing horizontally with a speed of 15 m s gushes out of a tube ofcross-sectional area 102 m2, and hits a vertical wall nearby. What is the force exertedon the wall by the impact of water, assuming it does not rebound ?

Discussion

3743.	Find the PE of three objects of masses 1kg,2kg,3kg,placed at the three vertices of anequilateral triangle of side 20cm
Answer» Find the PE of three objects of masses 1kg,2kg,3kg,placed at the three vertices of anequilateral triangle of side 20cm

Discussion

3744.	State the two laws of reflection of light.
Answer» State the two laws of reflection of light.

Discussion

3745.	Briefly describe the structure of an atom.
Answer» Briefly describe the structure of an atom.

Discussion

3746.	A cube of density 0.5g/cm^{3 }is placed in vessel of a liquid of density 1g/cm^3is gradually filled in the vessel at a cons†an t rate then what will be the graph representing variation of normal reaction of vessel on cube and time?
Answer» A cube of density 0.5g/cm^{3 }is placed in vessel of a liquid of density 1g/cm^3is gradually filled in the vessel at a cons†an t rate then what will be the graph representing variation of normal reaction of vessel on cube and time?

Discussion

3747.	If the intensity is increased by a factor x, sound level is increased by 20 dB. Then, the value of x is
Answer» If the intensity is increased by a factor $x$ , sound level is increased by $20 dB$ . Then, the value of $x$ is

Discussion

3748.	Give reasons. (a) We only see one side of the moon. (b) Planets do not collide into one another. (c) Saturn is said to have unique characteristics. (d) We see the planets and stars moving from the east to the west. (e) Even as an India-England cricket match is played at lords we can watch it live at home.
Answer» Give reasons. (a) We only see one side of the moon. (b) Planets do not collide into one another. (c) Saturn is said to have unique characteristics. (d) We see the planets and stars moving from the east to the west. (e) Even as an India-England cricket match is played at lords we can watch it live at home.

3748.

Give reasons. (a) We only see one side of the moon. (b) Planets do not collide into one another. (c) Saturn is said to have unique characteristics. (d) We see the planets and stars moving from the east to the west. (e) Even as an India-England cricket match is played at lords we can watch it live at home.

Answer»

Give reasons.

(a) We only see one side of the moon.

(b) Planets do not collide into one another.

(c) Saturn is said to have unique characteristics.

(d) We see the planets and stars moving from the east to the west.

(e) Even as an India-England cricket match is played at lords we can watch it live at home.

Discussion

3749.	a particle moves under the action of a force F=(20i +15j)newton along a straight line 3y+4x=5.work done by the force F is (x and y are in m
Answer» a particle moves under the action of a force F=(20i +15j)newton along a straight line 3y+4x=5.work done by the force F is (x and y are in m

Discussion

3750.	How do cyclones decrease the fertility of soil in the coastal areas?
Answer» How do cyclones decrease the fertility of soil in the coastal areas?

Discussion

Explore topic-wise InterviewSolutions in .

write any 3 points about ursa minor constellations ?

Boiling occurs

To go from A to town B a plane must fly about 1780km at an angle of 30^° west of north. How far northof A is B? (nearly)(2) 11452 km1542 km(4 890 km(3) 1254 kmfind

root 6x square y + 2xy + root 6y + 3xy

Four objects of the same weight(8 N) are pushed with the same force. Which object will go the farthest?

Question 1 (a) Fill in the blank: An image that cannot be obtained on a screen is called as a ___ .

A coil of insulated copper wire is connected to a galvanometer. What would happen if a bar magnet is:1. Pushed into the coil?2. Withdrawn from inside the coil?3. Held stationary inside the coil? [3 MARKS]

650 g + 350 g = _____ kg

How do you find density of a substance if relative density of the substance is known

four charge 3c,6c,3c,6c are distributed on four corners of square ABDC. the least force applied between which two particle?A. A and BB. A and CC. B and DD. D and C

3.Relative permitivity and permeability of material are epsilon and u respectively.which of the following values of these quantities are allowed for diamagnetic material

A particle is dropped from top of a tower. During its motion it covers 9/25 part of tower in last 1 sec. Find height of tower.

If a surface is smoothened, how will it affect friction?

When travelling obliquely from one medium to another medium, the direction of light rays in the second medium ___.

Find the dimension of k in the following;Y=Asinω(x/v-k)Here,ω=angular velocityv=linear velocity

(n + 1)2 - n2 =

Why was Dad sure he wouldn’t fall?

41.a spring having a force constant k is divided into three equal parts. what would be force constant for each individual parts?

what is instantaneous acceleration

Pritish pulls a load up an inclined road. What is/are the force(s) he must overcome to pull it up?

Suppose that a mothball loses volume by evaporation at a rate proportional to its instantaneous area. If the diameter of the ball decreases from 2cm to 1cm in 3 months, how long(in months) will it take so the ball has practically gone

Name the apparatus which is used to obtain a thin beam of light.

Question 8A child staying in a coastal region tests the drinking water and also the seawater with his tester. He finds that the compass needle deflects more in the case of seawater. Can you explain the reason?

State the speed of light in (a) air, (b) water, and (c) glass.

What should we do if something like a dust particle or an insect gets into our eye?

a ray reflected in turn by three plane mirrors mutually at right angles to each other.the angle between incident ray and reflected ray i

Ramesh buys six bottles of syrup, each containing 1 litre. Each empty bottle weighs 400g. The density of the syrup is 1.2g/cm3. What weight does Ramesh have to carry home?

Nine wires each of resistance r=5 Ω are connected to make a prism as shown in figure. The equivalent resistance of the arrangement across AB (in Ω) will be :

Question 7 (a)Identify the part which vibrates to produce sound in the following instruments.(a) Dholak (b) Sitar (c) Flute

7. If a=9-45,find value of a-1/a

Short note on turning effect of force about 300 to 400 words

An inflated balloon is rubbed with a woollen cloth and in another case; a ballpen refill is rubbed with polythene. When the two are brought closer, it is observed that they attract each other. What can we understand by this?

An object at rest starts moving at a uniform acceleration of 2 ms−2. The distance travelled by it in 2 s is

How do we know that a object is negatively charged or positively charged?

Which of these is a convex mirror?

If you cover a hole of vessel filled with water, you will feel pressure. True or False? Justify your answer.

How cyclones are formed in nature?

=9-45 then the value of +1/

I want to know about what do all planets contain in them

Which force keeps the members of the Solar System bound to the Sun?

5.28 A stream of water flowing horizontally with a speed of 15 m s gushes out of a tube ofcross-sectional area 102 m2, and hits a vertical wall nearby. What is the force exertedon the wall by the impact of water, assuming it does not rebound ?

Find the PE of three objects of masses 1kg,2kg,3kg,placed at the three vertices of anequilateral triangle of side 20cm

State the two laws of reflection of light.

Briefly describe the structure of an atom.

A cube of density 0.5g/cm^{3 }is placed in vessel of a liquid of density 1g/cm^3is gradually filled in the vessel at a cons†an t rate then what will be the graph representing variation of normal reaction of vessel on cube and time?

If the intensity is increased by a factor x, sound level is increased by 20 dB. Then, the value of x is

a particle moves under the action of a force F=(20i +15j)newton along a straight line 3y+4x=5.work done by the force F is (x and y are in m

How do cyclones decrease the fertility of soil in the coastal areas?