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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 3851. |
Pressure at free surface of a water lake is P1, while at a point at depth h below its free surface is P2. (a) How are P1 and P2 related ? (b) Which is more P1 or P2 ? |
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Answer» Pressure at free surface of a water lake is P1, while at a point at depth h below its free surface is P2. |
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| 3852. |
The force of attraction between two bodies is 20N Calculate the force between them when mass of each body as well as distance between them is halved ? |
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Answer» The force of attraction between two bodies is 20N Calculate the force between them when mass of each body as well as distance between them is halved ? |
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| 3853. |
The distance between a compression and the next rarefaction of a longitudinal wave is |
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Answer» The distance between a compression and the next rarefaction of a longitudinal wave is |
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| 3854. |
71.A particle has initial velocuty ‘u’. Its velocity become four time in time ‘t’. (Given that particle moves with constant acceleration along a straight line) Displacement of particle in time interval ‘2t’ from starting is ? |
| Answer» 71.A particle has initial velocuty ‘u’. Its velocity become four time in time ‘t’. (Given that particle moves with constant acceleration along a straight line) Displacement of particle in time interval ‘2t’ from starting is ? | |
| 3855. |
A body of mass ‘m’ is projected from the surface of a planet (of radius R and mass M) to the surface of another planet (of radius 2R and mass 16M). The distance between the centers of the two spherical planets is 10R. Find minimum speed given to ‘m’ so that it reaches other planet. |
| Answer» A body of mass ‘m’ is projected from the surface of a planet (of radius R and mass M) to the surface of another planet (of radius 2R and mass 16M). The distance between the centers of the two spherical planets is 10R. Find minimum speed given to ‘m’ so that it reaches other planet. | |
| 3856. |
Buoyant force = ___ |
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Answer» Buoyant force = |
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| 3857. |
12.A BODY IS DROPPED FROM HEIGHT h.WHELOSS IN ITS POTENTIAL ENERGY IS U THEN ITS VELOCITY IS v .THE MASS OF THE BODY IS = a]UxU/2v b]2v/U c]2v/UxU d]2U/vxv |
| Answer» 12.A BODY IS DROPPED FROM HEIGHT h.WHELOSS IN ITS POTENTIAL ENERGY IS U THEN ITS VELOCITY IS v .THE MASS OF THE BODY IS = a]UxU/2v b]2v/U c]2v/UxU d]2U/vxv | |
| 3858. |
the acceleration time graph of a particle moving in a straight line along x axis is given below. if initial velocity of the particle is 4m/s , then velocity at t=2 |
| Answer» the acceleration time graph of a particle moving in a straight line along x axis is given below. if initial velocity of the particle is 4m/s , then velocity at t=2 | |
| 3859. |
A square loop lying on x-y plane and having side length 5 cm . enters a uniform magnetic field of 0.6 Tesla (-k cap ) with a velocity 1 cm/s (i cap ) at t = 0 s The uniform magnetic field runs 20 cm . Plot the graph showing emf on y axis and time on x axis |
| Answer» A square loop lying on x-y plane and having side length 5 cm . enters a uniform magnetic field of 0.6 Tesla (-k cap ) with a velocity 1 cm/s (i cap ) at t = 0 s The uniform magnetic field runs 20 cm . Plot the graph showing emf on y axis and time on x axis | |
| 3860. |
Tinku dropped a stone into a very deep well. He hears the sound 6.53 s after he dropped the stone. Find the depth of the well. Take acceleration due to gravity, g=10ms2 and vsound = 340ms. |
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Answer» Tinku dropped a stone into a very deep well. He hears the sound 6.53 s after he dropped the stone. Find the depth of the well. Take acceleration due to gravity, g=10ms2 and |
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| 3861. |
When an object is projected at angle, then maximum height attained is H1 and when this is projected at angle with same speed, then maximum height attained is H2, then(Here R1 & R2 are ranges in these conditions) |
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Answer» When an object is projected at angle, then maximum height attained is H1 and when this is projected at angle with same speed, then maximum height attained is H2, then (Here R1 & R2 are ranges in these conditions) |
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| 3862. |
22.Velocity displacement graph of a particle moving along straight line is shown in figure. Find the acceleration of particle at 10 m from the origin . |
| Answer» 22.Velocity displacement graph of a particle moving along straight line is shown in figure. Find the acceleration of particle at 10 m from the origin . | |
| 3863. |
a ball of mass 1kg falls from a height of 5m above the free surface of water.the relative density of the solid ball is s =2/3 .the ball travels a distance of 2m under water and becomes stationary.the work done by the resistive forces of water is |
| Answer» a ball of mass 1kg falls from a height of 5m above the free surface of water.the relative density of the solid ball is s =2/3 .the ball travels a distance of 2m under water and becomes stationary.the work done by the resistive forces of water is | |
| 3864. |
What is the sign of INERTIA? |
| Answer» What is the sign of INERTIA? | |
| 3865. |
9.What does the area of the following give? A. Velocity-Time graph B. Acceleration -Time graph |
| Answer» 9.What does the area of the following give? A. Velocity-Time graph B. Acceleration -Time graph | |
| 3866. |
44.A body is projected vertically upwards with a velocity of 10m/s.It reaches the maximum vertical height in time t.In t/2, the height covered is a)h/2 b) 2h/5 c)3h/4 d)5h/8 |
| Answer» 44.A body is projected vertically upwards with a velocity of 10m/s.It reaches the maximum vertical height in time t.In t/2, the height covered is a)h/2 b) 2h/5 c)3h/4 d)5h/8 | |
| 3867. |
Question 19A child has drawn the electric circuit to study Ohm’s law as shown in the figure. His teacher told that the circuit diagram needs correction. Study the circuit diagram and redraw it after making all corrections. |
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Answer» Question 19 A child has drawn the electric circuit to study Ohm’s law as shown in the figure. His teacher told that the circuit diagram needs correction. Study the circuit diagram and redraw it after making all corrections.  |
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| 3868. |
10. A thin wire of length and mass m is bent in the form of a semicircle. The moment of inertia about an axisperpendicular to its plane and passing through the end of the wire isml2(3)2ml2(4)ml2(1)2(2) 2m |
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Answer» 10. A thin wire of length and mass m is bent in the form of a semicircle. The moment of inertia about an axis perpendicular to its plane and passing through the end of the wire is ml2 (3) 2ml2 (4) ml2 (1) 2 (2) 2m |
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| 3869. |
A body moves in a vertical semicircle of radius r from the lowest point to highest point. What is the amount of work done? (Assume mass of the body to be 'm' kg and acceleration due to gravity to be g ms−2) |
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Answer» A body moves in a vertical semicircle of radius r from the lowest point to highest point. What is the amount of work done? (Assume mass of the body to be 'm' kg and acceleration due to gravity to be g ms−2) |
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| 3870. |
A body is thrown vertically upwards and takes 5 seconds to reach maximum height. The distance travelled by the body will be same in1. 1st and 10th second2. 4th and 6th second 3. Both |
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Answer» A body is thrown vertically upwards and takes 5 seconds to reach maximum height. The distance travelled by the body will be same in 1. 1st and 10th second 2. 4th and 6th second 3. Both |
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| 3871. |
52. A wedge with a rough Grove in the shape of a quarter of a circle is kept on a smooth table. A disc is placed in the groove . Friction exists between Grove and disc. The wedge is moves with acceleration as shown. If the disc is to remain stationary relative to the groove then the coefficient of friction required would be. |
| Answer» 52. A wedge with a rough Grove in the shape of a quarter of a circle is kept on a smooth table. A disc is placed in the groove . Friction exists between Grove and disc. The wedge is moves with acceleration as shown. If the disc is to remain stationary relative to the groove then the coefficient of friction required would be. | |
| 3872. |
Accuracy and precise |
| Answer» Accuracy and precise | |
| 3873. |
A large vessel of height H , is filled with a liquid of density P , up to the brim . A small hole of radius r is made at the side vertical face , close to the base . What is the horizontal force required to stop the gushing of liquid? |
| Answer» A large vessel of height H , is filled with a liquid of density P , up to the brim . A small hole of radius r is made at the side vertical face , close to the base . What is the horizontal force required to stop the gushing of liquid? | |
| 3874. |
Heat is transferred by three different processes. Which of the following does not belong to the list? |
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Answer» Heat is transferred by three different processes. Which of the following does not belong to the list? |
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| 3875. |
Which of the following statements are true in the real world scenario? Statement 1: A uniform motion requires no net force. Statement 2: In practical situation friction force is always zero. Statement 3: Friction force acts opposite to the direction of relative motion. Statement 4: Frictional force can be minimized by using rough surface. |
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Answer» Which of the following statements are true in the real world scenario? Statement 1: A uniform motion requires no net force. Statement 2: In practical situation friction force is always zero. Statement 3: Friction force acts opposite to the direction of relative motion. Statement 4: Frictional force can be minimized by using rough surface. |
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| 3876. |
In an experiment to determine the melting point of an ice in laboratory what form of I should be preferable reused when should be the reading of the thermometer be noted |
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Answer» In an experiment to determine the melting point of an ice in laboratory what form of I should be preferable reused when should be the reading of the thermometer be noted |
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| 3877. |
12.The numerical value of ratio of displacement to distance is equal to or less than one |
| Answer» 12.The numerical value of ratio of displacement to distance is equal to or less than one | |
| 3878. |
A particle start from rest from a point P. It moves along a straight line and reaches a point Q. If maximum possible acceleration (or retardation) of particle is 10m/s2 and distance between P and Q is 1000 m. Then the minimum time in which particle reaches from P to Q is ? |
| Answer» A particle start from rest from a point P. It moves along a straight line and reaches a point Q. If maximum possible acceleration (or retardation) of particle is 10m/s2 and distance between P and Q is 1000 m. Then the minimum time in which particle reaches from P to Q is ? | |
| 3879. |
A lens forms an enlarged, upright image of an object. What lens did you use? Also, is the image real or virual? |
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Answer» A lens forms an enlarged, upright image of an object. What lens did you use? Also, is the image real or virual? |
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| 3880. |
a magnetic needle of pole strength m is pivoted at its centre its north pole is pull eastward by a string . then the horizontal force required to produce a deflection of theta from magnetic meridian |
| Answer» a magnetic needle of pole strength m is pivoted at its centre its north pole is pull eastward by a string . then the horizontal force required to produce a deflection of theta from magnetic meridian | |
| 3881. |
'The value of g remains same at all places on the earth surface'.Is this statement true ? Give reason for your answer. |
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Answer» 'The value of g remains same at all places on the earth surface'.Is this statement true ? Give reason for your answer. |
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| 3882. |
Two balls are simul†an eously projected horizontally with speeds 4m/s and3m/s resp. in opposite direction from top of a tower of height 80m . The dis†an ce between two balls when they hit the ground is |
| Answer» Two balls are simul†an eously projected horizontally with speeds 4m/s and3m/s resp. in opposite direction from top of a tower of height 80m . The dis†an ce between two balls when they hit the ground is | |
| 3883. |
14.The motion of a body falling from rest in a resisting medium is described by the equation dv/dt=a–bv, a and b are constants. The velocity at any time t is |
| Answer» 14.The motion of a body falling from rest in a resisting medium is described by the equation dv/dt=a–bv, a and b are constants. The velocity at any time t is | |
| 3884. |
16. Define relative volocity of an object wit another. Draw the position-time graphs of two objects moving along a straight line in the same direction when their relative velocity is zero. |
| Answer» 16. Define relative volocity of an object wit another. Draw the position-time graphs of two objects moving along a straight line in the same direction when their relative velocity is zero. | |
| 3885. |
What amount of heat is required by 50 g of copper to increase its temperature by 10∘C? specific heat of copper = 420 J/kg ∘C) |
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Answer» What amount of heat is required by 50 g of copper to increase its temperature by 10∘C? specific heat of copper = 420 J/kg ∘C) |
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| 3886. |
An arch in the form of a circle has a span of 30 M & a height if 10 M. The radius of arch in meters is? |
| Answer» An arch in the form of a circle has a span of 30 M & a height if 10 M. The radius of arch in meters is? | |
| 3887. |
ntA plumb bob is hung from the ceiling of a train compartment. If the train moves with an acceleration 'a' along a straight horizontal track, the string supporting the bob makes an angle tan-1(a/g) with the normal to the ceiling. Suppose the train moves on an inclined straight track with uniform velocity. If the angle of incline is tan-1(a/g), the string again makes the same angle with the normal to the ceiling. Can a person sitting inside the compartment tell by looking at the plumb line whether the train is accelerated on a horizontal straight track or it is going on an incline? If yes, how? If no, suggest a method to do so.n |
| Answer» ntA plumb bob is hung from the ceiling of a train compartment. If the train moves with an acceleration 'a' along a straight horizontal track, the string supporting the bob makes an angle tan-1(a/g) with the normal to the ceiling. Suppose the train moves on an inclined straight track with uniform velocity. If the angle of incline is tan-1(a/g), the string again makes the same angle with the normal to the ceiling. Can a person sitting inside the compartment tell by looking at the plumb line whether the train is accelerated on a horizontal straight track or it is going on an incline? If yes, how? If no, suggest a method to do so.n | |
| 3888. |
if mass of two point are tripld and di†an ce b/w them is doble then gravitational force of attraction b/w themwil |
| Answer» if mass of two point are tripld and di†an ce b/w them is doble then gravitational force of attraction b/w themwil | |
| 3889. |
The figure shows the voltage drops across the resistances. Find V1. |
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Answer» The figure shows the voltage drops across the resistances. Find V1. |
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| 3890. |
Question 3 What is the role of split ring in an electric motor? |
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Answer» Question 3 |
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| 3891. |
Four identical charges are placed at the corners of a tetrahedron of side d. The net force on the charge which is out of the plane is {(n^½)kq²/d²}. Then what is "n" ? |
| Answer» Four identical charges are placed at the corners of a tetrahedron of side d. The net force on the charge which is out of the plane is {(n^½)kq²/d²}. Then what is "n" ? | |
| 3892. |
Is it possible that a force is acting on a body but still the work done is zero ? Explain giving one example. |
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Answer» Is it possible that a force is acting on a body but still the work done is zero ? Explain giving one example. |
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| 3893. |
How do fish float in water? |
| Answer» How do fish float in water? | |
| 3894. |
Derive the expression of velocity of an object thrown as a projectile at any point of its trajectory |
| Answer» Derive the expression of velocity of an object thrown as a projectile at any point of its trajectory | |
| 3895. |
As per Hindus Mythology, in Mahabharata, the great Warrior BHIMA has capacity to throw Elephants into the space very far away from the surface of Earth. On the surface of Earth, he was able to provide minimum velocity for this purpose, i.e. 11.2 km s-1.(a) What is the name of the velocity provided by BHIMA to throw the elephants?(b) If He had thrown one elephant with the velocity of 20 km s-1, the velocity of the elephant when it had crossed the Gravitational field of Earthwas zero or not?Explain.(c) His one of the enemies also had thrown one horse, did the velocity required for that purpose was less or more than 11.2 kms-1.(d) On Mars, the acceleration of gravity is 1/3 of ‘g’ on Earth and Radius of Mars is 1/3 of Re. What velocity would be required by the BHIMA on Mars to throw one elephant away from its Gravitational field?(e) Calculate the orbital velocity of a satellite, which is revolving around the Earth very close to its surface, using 11.2 km s-1. |
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Answer» As per Hindus Mythology, in Mahabharata, the great Warrior BHIMA has capacity to throw Elephants into the space very far away from the surface of Earth. On the surface of Earth, he was able to provide minimum velocity for this purpose, i.e. 11.2 km s-1. (a) What is the name of the velocity provided by BHIMA to throw the elephants? (b) If He had thrown one elephant with the velocity of 20 km s-1, the velocity of the elephant when it had crossed the Gravitational field of Earthwas zero or not?Explain. (c) His one of the enemies also had thrown one horse, did the velocity required for that purpose was less or more than 11.2 kms-1. (d) On Mars, the acceleration of gravity is 1/3 of ‘g’ on Earth and Radius of Mars is 1/3 of Re. What velocity would be required by the BHIMA on Mars to throw one elephant away from its Gravitational field? (e) Calculate the orbital velocity of a satellite, which is revolving around the Earth very close to its surface, using 11.2 km s-1. |
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| 3896. |
A man throws a ball vertically upward and it rises through 20 m and returns to his hands. What was the initial velocity (u) of the ball and for how much time (T) it remained in the air? |
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Answer» A man throws a ball vertically upward and it rises through 20 m and returns to his hands. What was the initial velocity (u) of the ball and for how much time (T) it remained in the air? |
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| 3897. |
The frequency of a wave is 6 x 10 15/s . Its wavenumber would be |
| Answer» The frequency of a wave is 6 x 10 15/s . Its wavenumber would be | |
| 3898. |
what is difference between negative acceleration and retardation .on basis of different cases ? |
| Answer» what is difference between negative acceleration and retardation .on basis of different cases ? | |
| 3899. |
The position of a particle along x-axis at time t is given by x = 1 + t − t^2. The distance travelled by the particle on first 2 second is ____ .A. 1mB. 2mC. 2.5mD. 3m |
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Answer» The position of a particle along x-axis at time t is given by x = 1 + t − t^2. The distance travelled by the particle on first 2 second is ____ . A. 1m B. 2m C. 2.5m D. 3m |
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| 3900. |
A body is moving along positive x-axis initially with velocity 30 m/s. It is having cons†an t acceleration 4 m/s2 in negative x direction. Dis†an ce covered by it in 8th second is |
| Answer» A body is moving along positive x-axis initially with velocity 30 m/s. It is having cons†an t acceleration 4 m/s2 in negative x direction. Dis†an ce covered by it in 8th second is | |
