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This section includes 7 InterviewSolutions, each offering curated multiple-choice questions to sharpen your Current Affairs knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
A uniform wire of resistance 50 Ω is cut into 4 equal parts which are then connected in parallel. What is the effective resistance of the combination? |
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Answer» A uniform wire of resistance 50 Ω is cut into 4 equal parts which are then connected in parallel. What is the effective resistance of the combination? |
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| 2. |
Define and relate along with their unit: 1.mass 2.volume 3.density 4. Weight |
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Answer» Define and relate along with their unit: 1.mass 2.volume 3.density 4. Weight |
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| 3. |
What energy conversion takes place in hydro power plants? |
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Answer» What energy conversion takes place in hydro power plants? |
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| 4. |
Are running train processes which type of energy |
| Answer» Are running train processes which type of energy | |
| 5. |
Which of the following reasons cause the limited use of H2 as a fuel? I) Its calorific value is low. II) Its availability in free state is less. III) It is difficult to store. IV) It is not a clean fuel. |
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Answer» Which of the following reasons cause the limited use of H2 as a fuel? |
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| 6. |
What is range of hearing? Howthis range varies from one person to other and with age |
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Answer» What is range of hearing? Howthis range varies from one person to other and with age |
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| 7. |
In the following figure, a body starts from G, and reaches D via A, B and C. Calculate the ratio of the total distance travelled to the total displacement of the body if the curves GA and BC have the same radius, and all the lengths given are in feet. |
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Answer» In the following figure, a body starts from G, and reaches D via A, B and C. |
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| 8. |
A particle is moving in a circular path of radius R what will be the displacement after half a circle is complete |
| Answer» A particle is moving in a circular path of radius R what will be the displacement after half a circle is complete | |
| 9. |
A lever works on the principle of |
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Answer» A lever works on the principle of |
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| 10. |
Why are exposed water pipes lagged with straw during severe winter? |
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Answer» Why are exposed water pipes lagged with straw during severe winter? |
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| 11. |
The device which measures the electric potential difference between two points is called ___. |
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Answer» The device which measures the electric potential difference between two points is called ___. |
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| 12. |
How can gravitation be a weak force when it keeps all the planets and sun together |
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Answer» How can gravitation be a weak force when it keeps all the planets and sun together |
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| 13. |
The fruits of the trees always fall towards the earth give reason. |
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Answer» The fruits of the trees always fall towards the earth give reason. |
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| 14. |
A cubical wood of sides 20cm has a density of 0.25 g/cm3 . If it is kept in the water, find the ratio of length of the wood above the water to the length of the wood below the water. ( g= 10m/s2 ) |
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Answer» A cubical wood of sides 20cm has a density of 0.25 g/cm3 . If it is kept in the water, find the ratio of length of the wood above the water to the length of the wood below the water. ( g= 10m/s2 ) |
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| 15. |
The given figure shows a block and tackle system of pulleys used to lift a load. When the load pulled up by a distance 1m, how much do the effort end move? |
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Answer» The given figure shows a block and tackle system of pulleys used to lift a load. When the load pulled up by a distance 1m, how much do the effort end move?
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| 16. |
Why are accident at high speed is very much worse than accident at low speed? |
| Answer» Why are accident at high speed is very much worse than accident at low speed? | |
| 17. |
A body is moving vertically upwards. It's velocity changes at a constant rate from 50m/s to 20m/s in 3s . What is the acceleration? |
| Answer» A body is moving vertically upwards. It's velocity changes at a constant rate from 50m/s to 20m/s in 3s . What is the acceleration? | |
| 18. |
Derive an equation for the velocity time relation |
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Answer» Derive an equation for the velocity time relation |
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| 19. |
What do you mean by motion in one direction |
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Answer» What do you mean by motion in one direction |
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| 20. |
Why work done is a scalar quantity rather it's formula is force * distance but force is vector quantiy? |
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Answer» Why work done is a scalar quantity rather it's formula is force * distance but force is vector quantiy? |
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| 21. |
Can the state of absolute rest or motion be defined for any object? Comment. |
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Answer» Can the state of absolute rest or motion be defined for any object? Comment. |
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| 22. |
Arjun weighing 50 kg start climbing a rope.He takes 10 s to reach a height of 8m. a)What is work done by him? b)At what rate does he do this work |
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Answer» Arjun weighing 50 kg start climbing a rope.He takes 10 s to reach a height of 8m. a)What is work done by him? b)At what rate does he do this work |
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| 23. |
What is a conservative force? Why is gravity a conservative force and friction a non-conservative force? |
| Answer» What is a conservative force? Why is gravity a conservative force and friction a non-conservative force? | |
| 24. |
Calculate the modulus of elasticity for an applied force of 200 N on 0.1 m2 area resulting in change in length of a chain of 2 m by 0.004 m. |
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Answer» Calculate the modulus of elasticity for an applied force of 200 N on 0.1 m2 area resulting in change in length of a chain of 2 m by 0.004 m. |
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| 25. |
In case of charge why it flows from negative to positive? In all other case's flow is from positive to negative. |
| Answer» In case of charge why it flows from negative to positive? In all other case's flow is from positive to negative. | |
| 26. |
Pranati has set up a circuit as shown below. Which of the following could she put in the space marked 'X' to make the bulb glow brighter? |
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Answer» Pranati has set up a circuit as shown below. |
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| 27. |
The velocity time graph of runner is given in the graph.What is the total distance covered by the runner in 16s? |
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Answer» The velocity time graph of runner is given in the graph.What is the total distance covered by the runner in 16s?
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| 28. |
A block weighs W is held against a vertical wall by applying a horizontal force F. The minimum value of F needed to hold the block where it is assume:μ<1 |
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Answer» A block weighs W is held against a vertical wall by applying a horizontal force F. The minimum value of F needed to hold the block where it is assume:μ<1 |
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| 29. |
The wavelength of the upper limit of the audible sound in air, is . |
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Answer» The wavelength of the upper limit of the audible sound in air, is |
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| 30. |
Question 3 Abdul, while driving to school, computes the average speed for his trip to be 20 kmph. On his return trip along the same route, there is less traffic and the average speed is 40 kmph. What is the average speed for Abdul’s trip? |
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Answer» Question 3 Abdul, while driving to school, computes the average speed for his trip to be 20 kmph. On his return trip along the same route, there is less traffic and the average speed is 40 kmph. What is the average speed for Abdul’s trip? |
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| 31. |
Why do we use concave mirror of smaller focal lenght as shaving mirror? |
| Answer» Why do we use concave mirror of smaller focal lenght as shaving mirror? | |
| 32. |
If you are standing between two mirrors and you see three images of yourself then, find out the angle at which these mirrors are inclined to each other? |
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Answer» If you are standing between two mirrors and you see three images of yourself then, find out the angle at which these mirrors are inclined to each other? |
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| 33. |
Question 5 A stone is thrown in a vertically upward direction with a velocity of 5 ms−1. If the acceleration of the stone during its motion is 10 ms−2 in the downward direction, what will be the height attained by the stone and how much time will it take to reach there? |
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Answer» Question 5 A stone is thrown in a vertically upward direction with a velocity of 5 ms−1. If the acceleration of the stone during its motion is 10 ms−2 in the downward direction, what will be the height attained by the stone and how much time will it take to reach there? |
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| 34. |
Two blocks are having same mass but are made up of wood and iron respectively. The blocks are kept submerged into the water as shown by some external force then___ |
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Answer» Two blocks are having same mass but are made up of wood and iron respectively. The blocks are kept submerged into the water as shown by some external force then___
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| 35. |
In the graph given below, what is the acceleration at t=1 s? |
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Answer» In the graph given below, what is the acceleration at t=1 s?
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| 36. |
Question 1 (a) Judge the equivalent resistance when the following are connected in parallel−(a) 1Ω and 106Ω. |
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Answer» Question 1 (a) Judge the equivalent resistance when the following are connected in parallel−(a) 1Ω and 106Ω. |
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| 37. |
What type of motion is represented by each one of the following graphs? |
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Answer» What type of motion is represented by each one of the following graphs?
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| 38. |
If 120 g steam of temperature 100 ∘C is released on an ice slab of temperature 0 ∘C, how much ice will melt? (Latent heat of melting of ice = 80 cal/g Latent heat of vapourization of water = 540 cal/g) |
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Answer» If 120 g steam of temperature 100 ∘C is released on an ice slab of temperature 0 ∘C, how much ice will melt? |
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| 39. |
A closely wounded cylindrical coil whose diameter is less in comparison to its length is named as: |
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Answer» A closely wounded cylindrical coil whose diameter is less in comparison to its length is named as: |
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| 40. |
__________ is the property by which a material hinders the flow of electrons |
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Answer» __________ is the property by which a material hinders the flow of electrons |
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| 41. |
A pulley fixed to the ceiling carried a thread with bodies of masses m1 and m2 attached to its ends. The masses of the pulley and the thread are negligible and friction is absent. Find the acceleration of the center of mass of this system. |
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Answer» A pulley fixed to the ceiling carried a thread with bodies of masses m1 and m2 attached to its ends. The masses of the pulley and the thread are negligible and friction is absent. Find the acceleration of the center of mass of this system. |
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| 42. |
Identify the gases which are released during burning of fossil fuels, which lead to acidic rain. |
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Answer» Identify the gases which are released during burning of fossil fuels, which lead to acidic rain. |
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| 43. |
An object of mass 150 g is moving with a speed of 30 m s−1. It is brought at rest by an external force in 0.5 seconds . Find the magnitude of change in the momentum of the object. |
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Answer» An object of mass 150 g is moving with a speed of 30 m s−1. It is brought at rest by an external force in 0.5 seconds . Find the magnitude of change in the momentum of the object. |
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| 44. |
What is the distance travelled by a body and its displacement when it completes one revolution around a circular track with radius r? |
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Answer» What is the distance travelled by a body and its displacement when it completes one revolution around a circular track with radius r? |
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| 45. |
Can we apply Newton's third law to the gravitational force ? Explain your answer. |
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Answer» Can we apply Newton's third law to the gravitational force ? Explain your answer. |
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| 46. |
A runner completes one round of a circular track of diameter 400 m in 40 s. What is the distance covered and the displacement at the end of 2 minutes 20 s? |
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Answer» A runner completes one round of a circular track of diameter 400 m in 40 s. What is the distance covered and the displacement at the end of 2 minutes 20 s? |
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| 47. |
Complete the following sentences : (a) Sound can not travel through ___, but it requires a ___ . (b) When sound travels in a medium, the particles of medium ___ but the disturbance ___ . (c) A longitudinal wave is composed of compression and ___ . (d) A transverse wave is composed of crest and ___ . (e) Wave velocity = ___ x wavelength. |
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Answer» Complete the following sentences : (a) Sound can not travel through (b) When sound travels in a medium, the particles of medium (c) A longitudinal wave is composed of compression and (d) A transverse wave is composed of crest and (e) Wave velocity = |
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| 48. |
If the momentum of a body increases by 50% its kinetic energy increases by ? |
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Answer» If the momentum of a body increases by 50% its kinetic energy increases by ? |
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| 49. |
If the bus is moving and we are sitting in the bus then will we considered as motion or not and if so then why? |
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Answer» If the bus is moving and we are sitting in the bus then will we considered as motion or not and if so then why? |
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| 50. |
Ques. If an elephant was chasing you, its enormous mass would be most threatening. But if you moved in a zigzag path, its big mass would become your advantage. Why? |
| Answer» Ques. If an elephant was chasing you, its enormous mass would be most threatening. But if you moved in a zigzag path, its big mass would become your advantage. Why? | |
