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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.
| 1751. |
Question 4The essential difference between an AC generator and a DC generator is that:(a) AC generator supplies direct current.(b) DC generator has a commutator.(c) DC generator supplies alternating current.(d) AC generator has slip rings while the DC generator has a commutator. |
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Answer» Question 4 The essential difference between an AC generator and a DC generator is that: (a) AC generator supplies direct current. (b) DC generator has a commutator. (c) DC generator supplies alternating current. (d) AC generator has slip rings while the DC generator has a commutator. |
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| 1752. |
Arrange 15 km, 5 m, 10 mm in descending order. |
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Answer» Arrange 15 km, 5 m, 10 mm in descending order. |
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| 1753. |
A water †an ker is filed up to 2/3 of its height is moving with uniform speed. On sudden application of the brake, the water in the †an k would fall in which direction and why. |
| Answer» A water †an ker is filed up to 2/3 of its height is moving with uniform speed. On sudden application of the brake, the water in the †an k would fall in which direction and why. | |
| 1754. |
Briefly explain the rotation of the Moon. |
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Answer» Briefly explain the rotation of the Moon. |
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| 1755. |
Why light take quickest path between two points ? |
| Answer» Why light take quickest path between two points ? | |
| 1756. |
he position of an object is given by r (9ti+ 4t) m. Find its velocity at time t = 1s |
| Answer» he position of an object is given by r (9ti+ 4t) m. Find its velocity at time t = 1s | |
| 1757. |
What is a photon? |
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Answer» What is a photon? |
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| 1758. |
When an object is thrown up, the force of gravity ___. |
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Answer» When an object is thrown up, the force of gravity ___. |
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| 1759. |
It is said that light travels in a straight line. How will you prove this? |
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Answer» It is said that light travels in a straight line. How will you prove this? |
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| 1760. |
16. Mechanism of wackers process |
| Answer» 16. Mechanism of wackers process | |
| 1761. |
'A body moves as a whole; all parts of the body move through the same distance in the same time.' What type of motion is this? |
| Answer» 'A body moves as a whole; all parts of the body move through the same distance in the same time.' What type of motion is this? | |
| 1762. |
What is the work (in J) put into a simple machine for an output work of 25 J, if the machine is only 55% efficient?45.45 |
Answer» What is the work (in J) put into a simple machine for an output work of 25 J, if the machine is only 55% efficient?
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| 1763. |
What is difference between sound and voice |
| Answer» What is difference between sound and voice | |
| 1764. |
44. the period of revolution of earths satellite close to the surface of the earth is 60 min.the period of another satellite in an orbit is at a distance of 3 times earths radius from its surface will be |
| Answer» 44. the period of revolution of earths satellite close to the surface of the earth is 60 min.the period of another satellite in an orbit is at a distance of 3 times earths radius from its surface will be | |
| 1765. |
Ashwin is required to take the measurement of a wooden box. Which of the following should be the proper position of his eye for taking the reading? |
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Answer» Ashwin is required to take the measurement of a wooden box. Which of the following should be the proper position of his eye for taking the reading? |
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| 1766. |
Write the precautions,to be followed,when a metre scale is being used for measuring a given length. |
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Answer» Write the precautions,to be followed,when a metre scale is being used for measuring a given length. |
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| 1767. |
A ball is rolled along a horizontal surface. The ball comes to stop after some time. Which force is responsible for stopping the motion of the ball? |
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Answer» A ball is rolled along a horizontal surface. The ball comes to stop after some time. Which force is responsible for stopping the motion of the ball? |
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| 1768. |
When we apply a push or pull on a body, we call it as our muscular force.This force is so called because: |
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Answer» When we apply a push or pull on a body, we call it as our muscular force.This force is so called because: |
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| 1769. |
Which one of the given options is a closed shape? |
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Answer» Which one of the given options is a closed shape? |
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| 1770. |
A nut cracker takes an effort of 4 kgf for a load of 6 kgf. What is its mechanical advantage?1.5 |
Answer» A nut cracker takes an effort of 4 kgf for a load of 6 kgf. What is its mechanical advantage?
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| 1771. |
The large gap between the orbits of Mars and Jupiter is occupied by a large number of small objects that revolve around the sun are called___ |
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Answer» The large gap between the orbits of Mars and Jupiter is occupied by a large number of small objects that revolve around the sun are called |
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| 1772. |
Can you tell ?(a) When can we say that displacement has taken place?(b) What should be taken into account for measuring work?(c) What are the various forms of energy ?(d) Describe one natural chain of transformation of energy.(e) Why should we save energy ?(f) What is ‘green energy’ ?(g) What are the non-conventional energy resources ?(h) Which forms of energy from the sun are used in solar energy devices ?(i) Why should we maximise the use of non-conventional energy resources ? |
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Answer» Can you tell ? (a) When can we say that displacement has taken place? (b) What should be taken into account for measuring work? (c) What are the various forms of energy ? (d) Describe one natural chain of transformation of energy. (e) Why should we save energy ? (f) What is ‘green energy’ ? (g) What are the non-conventional energy resources ? (h) Which forms of energy from the sun are used in solar energy devices ? (i) Why should we maximise the use of non-conventional energy resources ? |
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| 1773. |
Statement 1: Sound vibrations make the ear drum vibrate, the ear drum sends a vibration to the inner ear, from there the signal goes to the brain.Statement 2: Ear drum is a thin stretched membrane. |
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Answer» Statement 1: Sound vibrations make the ear drum vibrate, the ear drum sends a vibration to the inner ear, from there the signal goes to the brain. |
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| 1774. |
Which of the following energy resources are considered as fossil fuels? |
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Answer» Which of the following energy resources are considered as fossil fuels? |
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| 1775. |
How will we know is material we don't know is a conductor or insulator of electricity without doing practical experiment. |
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Answer» How will we know is material we don't know is a conductor or insulator of electricity without doing practical experiment. |
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| 1776. |
The physical quantity used to describe how fast a body is travelling is |
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Answer» The physical quantity used to describe how fast a body is travelling is |
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| 1777. |
____________is a device used by navigators to find the direction. |
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Answer» ____________is a device used by navigators to find the direction. |
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| 1778. |
Considered the following unlabelled diagram of a flashlight:Which of the parts is responsible for controlling the current flow in the circuit? |
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Answer» Considered the following unlabelled diagram of a flashlight:
Which of the parts is responsible for controlling the current flow in the circuit? |
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| 1779. |
Is there any n1 value for humprey series |
| Answer» Is there any n1 value for humprey series | |
| 1780. |
The footstep is an unreliable measure of length because(a) people do not measure properly with it.(b) it varies from person to person.(c) some people jump too much while measuring with the footstep.(d) it is a standard unit of measurement. |
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Answer» The footstep is an unreliable measure of length because (a) people do not measure properly with it. (b) it varies from person to person. (c) some people jump too much while measuring with the footstep. (d) it is a standard unit of measurement. |
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| 1781. |
A pulley is used because it: |
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Answer» A pulley is used because it: |
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| 1782. |
41 500 persons have to dip in a rectangular tank which is 80m long and50m broad. If the average displacement of water by a person is 0.04m*3 then the rise in the level of water in tank is? |
| Answer» 41 500 persons have to dip in a rectangular tank which is 80m long and50m broad. If the average displacement of water by a person is 0.04m*3 then the rise in the level of water in tank is? | |
| 1783. |
Which of the following is equal to 50 ml? |
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Answer» Which of the following is equal to 50 ml? |
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| 1784. |
How can noise pollution be controlled in a residential area? |
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Answer» How can noise pollution be controlled in a residential area? |
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| 1785. |
Suppose a gear has a yellow mark on one of its teeth. The gear starts moving. What are the motion of the gear and the motion of the yellow mark respectively? |
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Answer» Suppose a gear has a yellow mark on one of its teeth. The gear starts moving. What are the motion of the gear and the motion of the yellow mark respectively? |
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| 1786. |
Question 2The magnetic field in a given region is uniform. Draw a diagram to represent it. |
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Answer» Question 2 |
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| 1787. |
Which of these is not a symbol of a circuit element?(a) (b) (c) (d) |
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Answer» Which of these is not a symbol of a circuit element? (a)  (b)  (c)  (d) 
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| 1788. |
A book is placed on the top of a table; it is moved in the right direction. In which direction will the force of friction act? |
Answer» A book is placed on the top of a table; it is moved in the right direction. In which direction will the force of friction act? |
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| 1789. |
The materials that stick to a magnet are called ………….. materials. |
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Answer» The materials that stick to a magnet are called ………….. materials. |
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| 1790. |
if mass of the Saturn planet decreases by 0.2% and radius of the orbit of a satellite revolving around the planet is increases by 0.6% then increase the time period of a satellite is |
| Answer» if mass of the Saturn planet decreases by 0.2% and radius of the orbit of a satellite revolving around the planet is increases by 0.6% then increase the time period of a satellite is | |
| 1791. |
a wire os resis†an ce R and radius r is conpress3d back to another wire of ardius 2r new resis†an ce of wire will b |
| Answer» a wire os resis†an ce R and radius r is conpress3d back to another wire of ardius 2r new resis†an ce of wire will b | |
| 1792. |
How do magnets lose their magnetic property? What can be done to keep them safe? |
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Answer» How do magnets lose their magnetic property? What can be done to keep them safe? |
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| 1793. |
Three charged particles having charge q, -2q, q are placed in a line at points (-a,0), (0,0), (a,o) respectively. The expression for electric potential at P (r,0) . If r>>a is ? |
| Answer» Three charged particles having charge q, -2q, q are placed in a line at points (-a,0), (0,0), (a,o) respectively. The expression for electric potential at P (r,0) . If r>>a is ? | |
| 1794. |
unit and dimension of coefficient of rolling friction is-- |
| Answer» unit and dimension of coefficient of rolling friction is-- | |
| 1795. |
Find the current through 2 Ω resistor in the arrangement shown below |
| Answer» Find the current through 2 Ω resistor in the arrangement shown below | |
| 1796. |
top of small cylinder of radius r is fixed and kept on top of large cylinder of radius 2r ,bottom of which is not fixed both of them have same length l bottom clyinder is twisted by θ find the twist in the top cylind |
| Answer» top of small cylinder of radius r is fixed and kept on top of large cylinder of radius 2r ,bottom of which is not fixed both of them have same length l bottom clyinder is twisted by θ find the twist in the top cylind | |
| 1797. |
123.A disc of radius r is atrest at the top of a rough inclined plane it rolls without slipping. At the bottom of incline plane there is a smooth vertical groove of radius R. In order to loop the group the minimum height of incline required is about assume r |
| Answer» 123.A disc of radius r is atrest at the top of a rough inclined plane it rolls without slipping. At the bottom of incline plane there is a smooth vertical groove of radius R. In order to loop the group the minimum height of incline required is about assume r<< | |
| 1798. |
State the characteristics of the image formed by a plane mirror. |
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Answer» State the characteristics of the image formed by a plane mirror. |
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| 1799. |
Suggest an arrangement to store a U shaped magnet. How is this different from storing a pair of bar magnets? |
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Answer» Suggest an arrangement to store a U shaped magnet. How is this different from storing a pair of bar magnets? |
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| 1800. |
The efficiency of a machine is the ratio between ___ |
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Answer» The efficiency of a machine is the ratio between ___ |
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