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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.
| 801. |
Determine the velocity ratio of a bicycle in which the ratio of teeth on the rear sprocket wheel to that on the front wheel is 1: 3 |
| Answer» Determine the velocity ratio of a bicycle in which the ratio of teeth on the rear sprocket wheel to that on the front wheel is 1: 3 | |
| 802. |
How much force is required to move a pendulum bob away from its mean position by 45 degree?? |
| Answer» How much force is required to move a pendulum bob away from its mean position by 45 degree?? | |
| 803. |
If the density of water of a lake is 1.25 g/mL and 1 kg of water contains 92g of Na+ions , calculate the molarity of Na+ ions in this lake water. |
| Answer» If the density of water of a lake is 1.25 g/mL and 1 kg of water contains 92g of Na+ions , calculate the molarity of Na+ ions in this lake water. | |
| 804. |
Why a person's leg appears to be short when standing in a water tank;? |
| Answer» Why a person's leg appears to be short when standing in a water tank;? | |
| 805. |
how to we explane dispersion by snail'law? |
| Answer» how to we explane dispersion by snail'law? | |
| 806. |
a galvanometer of resis†an ce100 show a full scale deflection of 10ma. what should be value of shunt so that it can measur |
| Answer» a galvanometer of resis†an ce100 show a full scale deflection of 10ma. what should be value of shunt so that it can measur | |
| 807. |
What is the importance of the Pole Star? |
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Answer» What is the importance of the Pole Star? |
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| 808. |
Two metal spheres, one of the radius R and the other of radius 2R both have same surface charge density σ . They are brought in contact and separated . The surface charge density of bigger sphere becomes (1)2 (2)5/3 (3)5/6 (4)4/3 |
| Answer» Two metal spheres, one of the radius R and the other of radius 2R both have same surface charge density σ . They are brought in contact and separated . The surface charge density of bigger sphere becomes (1)2 (2)5/3 (3)5/6 (4)4/3 | |
| 809. |
Why are cooking utensils made of copper or aluminium? |
| Answer» Why are cooking utensils made of copper or aluminium? | |
| 810. |
What are the chemical effects of electric current? |
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Answer» What are the chemical effects of electric current? |
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| 811. |
Write the factor on which intensity of sound depends. |
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Answer» Write the factor on which intensity of sound depends. |
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| 812. |
24. Calculate the number of moles in 9gram of fe |
| Answer» 24. Calculate the number of moles in 9gram of fe | |
| 813. |
What is the significance of thermal in thermal power generation? |
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Answer» What is the significance of thermal in thermal power generation? |
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| 814. |
The speed of sound depends on |
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Answer» The speed of sound depends on |
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| 815. |
3.An open uTube contains mercury When 11.2 CM of water is poured into one of the arms of the tube how high does the Mercury dry ice in the other arm for its initial level 1).82 2)1.35 3).41 4)2.32 |
| Answer» 3.An open uTube contains mercury When 11.2 CM of water is poured into one of the arms of the tube how high does the Mercury dry ice in the other arm for its initial level 1).82 2)1.35 3).41 4)2.32 | |
| 816. |
A particle of mass m moves in a certain plane P due to a force F whose magnitude is constant and whose vector rotates in that plane with a constant angular velocity w(omega). Assuming the particle to be stationary at the moment t=0, find its velocity as a function of time and the distance covered by the particle between two successive stops. |
| Answer» A particle of mass m moves in a certain plane P due to a force F whose magnitude is constant and whose vector rotates in that plane with a constant angular velocity w(omega). Assuming the particle to be stationary at the moment t=0, find its velocity as a function of time and the distance covered by the particle between two successive stops. | |
| 817. |
Question 4Sometimes, a crackling sound is heard while taking off a sweater during winters. Explain. |
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Answer» Question 4 |
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| 818. |
Consider the following statements: Statement 1: Irregularities on two surfaces lock into one another. Statement 2: When we attempt to move any surface, we have to apply a force to overcome the interlocking. Choose the correct option: |
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Answer» Consider the following statements: |
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| 819. |
Which of the following is equivalent to 1 pascal? |
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Answer» Which of the following is equivalent to 1 pascal? |
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| 820. |
A man of height 1.8 m walks away from a lamp at a height of 6m. If the man's speed is 7 m/s, fimd the speed in m/s at which the tip of the shadow moves |
| Answer» A man of height 1.8 m walks away from a lamp at a height of 6m. If the man's speed is 7 m/s, fimd the speed in m/s at which the tip of the shadow moves | |
| 821. |
x²y³=(x+y)⁵ then dy/dx=(a)x/y(b)-x/y(c)y/x(d)-y/x |
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Answer» x²y³=(x+y)⁵ then dy/dx= (a)x/y (b)-x/y (c)y/x (d)-y/x |
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| 822. |
Explain how groundwater is recharged? |
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Answer» Explain how groundwater is recharged? |
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| 823. |
a convex mirror forms an image one fourth the size the size of the object .if object is at a distance of 0.5m from the the mirror the focal length of the mirror |
| Answer» a convex mirror forms an image one fourth the size the size of the object .if object is at a distance of 0.5m from the the mirror the focal length of the mirror | |
| 824. |
Two plane mirrors A and B are placed parallel to each other at a separation of 40 cm. An object is placed at a distance of 10 cm from mirror A. What will be the distance between the images of the object formed by the mirrors? |
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Answer» Two plane mirrors A and B are placed parallel to each other at a separation of 40 cm. An object is placed at a distance of 10 cm from mirror A. What will be the distance between the images of the object formed by the mirrors?
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| 825. |
Convert 40∘20′ into radian measure. |
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Answer» Convert 40∘20′ into radian measure. |
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| 826. |
In the space, I tried to find out my weight using a spring balencer. I observed that my weight comes to be zero. State the possible reason for this result. |
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Answer» In the space, I tried to find out my weight using a spring balencer. I observed that my weight comes to be zero. State the possible reason for this result. |
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| 827. |
Why is a fountain of water seen rising out of a leaky pipe? |
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Answer» Why is a fountain of water seen rising out of a leaky pipe? |
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| 828. |
(256)0.16 × (256)0.09(a) 4(b) 16(c) 64(d) 256.25 |
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Answer» (256)0.16 × (256)0.09 (a) 4 (b) 16 (c) 64 (d) 256.25 |
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| 829. |
A car is moving with a speed of 9 ms−1. If the mass of the car is 2000 kg, find the magnitude of unbalanced force required to bring it to rest in three seconds. |
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Answer» A car is moving with a speed of 9 ms−1. If the mass of the car is 2000 kg, find the magnitude of unbalanced force required to bring it to rest in three seconds. |
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| 830. |
A coating of _________ is usually deposited on iron to protect it from corrosion. |
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Answer» A coating of _________ is usually deposited on iron to protect it from corrosion. |
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| 831. |
Name the physical quantity whose SI unit is ‘hertz’. Define. |
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Answer» Name the physical quantity whose SI unit is ‘hertz’. Define. |
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| 832. |
49. Lotus is 2m above the water pond due to wind, lotus slides on the side and only the stem submerges in the water at a distance of 10m from the original position in the water .find the depth of the water in the pond. |
| Answer» 49. Lotus is 2m above the water pond due to wind, lotus slides on the side and only the stem submerges in the water at a distance of 10m from the original position in the water .find the depth of the water in the pond. | |
| 833. |
Suppose the temperature of B and C initially was T1 and T2 respectively. After heat stopped flowing from C to B let their temperatures be T. Which of the following(s) is/are true? |
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Answer» Suppose the temperature of B and C initially was T1 and T2 respectively. After heat stopped flowing from C to B let their temperatures be T. Which of the following(s) is/are true? |
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| 834. |
What is electric current? |
| Answer» What is electric current? | |
| 835. |
54. A body of mass m is placed on a rough surface with coefficient of friction =mu inclined at theeta.If the mass is in limiting equilibrium then theeta = |
| Answer» 54. A body of mass m is placed on a rough surface with coefficient of friction =mu inclined at theeta.If the mass is in limiting equilibrium then theeta = | |
| 836. |
who is richer? having gold of 1 newton at moon or 1 newton gold at earth |
| Answer» who is richer? having gold of 1 newton at moon or 1 newton gold at earth | |
| 837. |
A boy hears a sound after 2 seconds, how far he is from the car if the speed of sound in air is 335 m/s? |
| Answer» A boy hears a sound after 2 seconds, how far he is from the car if the speed of sound in air is 335 m/s? | |
| 838. |
1.A concave mirror has a radius of curvature 30 cm.How far must it be placed from a small object in order to give a five times magnified virtual image? 2.A concave mirror produces a real image of half thesize of an object placed at 60 cm infront of it. Whereshould the object be placed to obtain a virtual imageof double the size of the object |
| Answer» 1.A concave mirror has a radius of curvature 30 cm.How far must it be placed from a small object in order to give a five times magnified virtual image? 2.A concave mirror produces a real image of half thesize of an object placed at 60 cm infront of it. Whereshould the object be placed to obtain a virtual imageof double the size of the object | |
| 839. |
19.A car is moving along a velocity of 18km/h and brakes are applied and car comes at rest in 2sec . Find the acceleration? |
| Answer» 19.A car is moving along a velocity of 18km/h and brakes are applied and car comes at rest in 2sec . Find the acceleration? | |
| 840. |
Consider a one-dimensional motion of a particle with total energyE. There are four regions A, B, C and D in which the relationbetween potential energy V, kinetic energy (K) and total energyE is as given below:Region A : V > ERegion B : V < ERegion C : K > ERegion D : V > KState with reason in each case whether a particle can be found inthe given region or not |
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Answer» Consider a one-dimensional motion of a particle with total energy E. There are four regions A, B, C and D in which the relation between potential energy V, kinetic energy (K) and total energy E is as given below: Region A : V > E Region B : V < E Region C : K > E Region D : V > K State with reason in each case whether a particle can be found in the given region or not |
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| 841. |
What is motion? Differentiate between slow and fast objects. |
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Answer» What is motion? Differentiate between slow and fast objects. |
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| 842. |
How many bulbs of resistance 8 Ω should be joined in parallel to draw a current of 3 A from a battery of 3 V? |
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Answer» How many bulbs of resistance 8 Ω should be joined in parallel to draw a current of 3 A from a battery of 3 V? |
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| 843. |
32. how our shadow is formed ? why the colour of our shadow formed is black in colour |
| Answer» 32. how our shadow is formed ? why the colour of our shadow formed is black in colour | |
| 844. |
A body is whirled in a horizontal circle of radius 20cm it has an angular velocity of 10 rad/s what is linear velocity at any point on circular path |
| Answer» A body is whirled in a horizontal circle of radius 20cm it has an angular velocity of 10 rad/s what is linear velocity at any point on circular path | |
| 845. |
Explain why it is easier to lift a stone under water than in air. |
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Answer» Explain why it is easier to lift a stone under water than in air. |
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| 846. |
A rod of length 1.0 m and mass 0.5 kg fixed atone end is initially hanging vertical. The otherend is now raised until it makes an angle 60^° with the vertical. The work required to be donefor this, is(a) 1.2 J(c) 2.4J(b) 1.8J(d) 3.0 J |
| Answer» A rod of length 1.0 m and mass 0.5 kg fixed atone end is initially hanging vertical. The otherend is now raised until it makes an angle 60^° with the vertical. The work required to be donefor this, is(a) 1.2 J(c) 2.4J(b) 1.8J(d) 3.0 J | |
| 847. |
Question 18What kind of lens is there in our eyes? Where does it form the image of an object? |
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Answer» Question 18 What kind of lens is there in our eyes? Where does it form the image of an object? |
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| 848. |
The coefficient in 6.65 x 104 is: |
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Answer» The coefficient in 6.65 x 104 is: |
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| 849. |
If earth is moving at a very rapid speed , hen how aeroplanes and rocket s land successfully? |
| Answer» If earth is moving at a very rapid speed , hen how aeroplanes and rocket s land successfully? | |
| 850. |
A heat transformer is device that transfers a part of the heat. Supplied to it at an intermediate temperature, to a high temperature reservoir while rejecting the remaining part to a low temperature heat sink. In such a heat transformer, 100kJ of heat is supplied at 350K. the maximum amount of heat in kJ theta can be transferred at 400K when the rest is rejected to a heat sink at 300K is |
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Answer» A heat transformer is device that transfers a part of the heat. Supplied to it at an intermediate temperature, to a high temperature reservoir while rejecting the remaining part to a low temperature heat sink. In such a heat transformer, 100kJ of heat is supplied at 350K. the maximum amount of heat in kJ theta can be transferred at 400K when the rest is rejected to a heat sink at 300K is |
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