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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 sound wave is different than a light wave in that a sound wave is |
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Answer» A sound wave is different than a light wave in that a sound wave is |
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| 2. |
Noise pollution causes: |
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Answer» Noise pollution causes: |
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| 3. |
Which of the following is not a state variable? |
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Answer» Which of the following is not a state variable? |
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| 4. |
Question 7 The first of a month is the new moon day. On fifteenth of the same month, which of the following figures would represent the phase of the moon? (a) (b) (c) (d) |
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Answer» Question 7 |
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| 5. |
Which of the following is incorrect? |
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Answer» Which of the following is incorrect? |
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| 6. |
The loudness of a sound is 8 db when the amplitude of vibrations is 2 units. If the amplitude is increased to 8 units, find the loudness of the sound in db. [3 MARKS] |
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Answer» The loudness of a sound is 8 db when the amplitude of vibrations is 2 units. If the amplitude is increased to 8 units, find the loudness of the sound in db. [3 MARKS] |
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| 7. |
Match the following: [5 MARKS] Column I Column II (a) A plane mirror (i) Used as a magnifying glass. (b) A convex mirror (ii) Can form the image of objects spread over a large area. (c) A convex lens (iii) Used by dentists to see an enlarged image of teeth. (d) A concave mirror (iv) The image is always inverted and magnified. (e) A concave lens (v) The image is erect and of the same size as the object. (vi) The image is erect and smaller in size than the object. |
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Answer» Match the following: [5 MARKS]
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| 8. |
What is the difference between electronics and electrical? |
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Answer» What is the difference between electronics and electrical? |
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| 9. |
From a battery of potential difference 20 V, current 3 A flows through a wire for 90 min. Find the electrical energy supplied by the battery. |
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Answer» From a battery of potential difference 20 V, current 3 A flows through a wire for 90 min. Find the electrical energy supplied by the battery. |
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| 10. |
Describe a bell jar experiment to prove sound requires a medium to travel. [5 MARKS] |
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Answer» Describe a bell jar experiment to prove sound requires a medium to travel. [5 MARKS] |
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| 11. |
A plane mirror is approaching you at 10 cms−1. Your image shall approach you with a speed of: |
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Answer» A plane mirror is approaching you at 10 cms−1. Your image shall approach you with a speed of: |
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| 12. |
Calculate the apparent weight of a stone whose weight in the air is 250 g and the upthrust is 0.8 N.(take g = 9.8 ms−2) |
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Answer» Calculate the apparent weight of a stone whose weight in the air is 250 g and the upthrust is 0.8 N.(take g = 9.8 ms−2) |
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| 13. |
The line joining the centre of curvature and the ___ of the mirror is called the principal Axis |
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Answer» The line joining the centre of curvature and the |
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| 14. |
A spherical solid ball of volume V is made of a material of density ρ1. It is falling through a liquid of density ρ2(ρ2<ρ1). Assume that the liquid applies a viscous force on the ball that is proportional to the square of its speed v, i.e., Fviscous=−kv2(k>0). The terminal speed of the ball is. |
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Answer» A spherical solid ball of volume V is made of a material of density ρ1. It is falling through a liquid of density ρ2(ρ2<ρ1). Assume that the liquid applies a viscous force on the ball that is proportional to the square of its speed v, i.e., Fviscous=−kv2(k>0). The terminal speed of the ball is. |
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| 15. |
What is rotational fluid? |
| Answer» What is rotational fluid? | |
| 16. |
Why do we always see only one side of the moon? |
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Answer» Why do we always see only one side of the moon? |
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| 17. |
If we make a windmill on the moon will its blade ever move.Why? |
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Answer» If we make a windmill on the moon will its blade ever move.Why? |
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| 18. |
Which of the below is a set of solid objects? |
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Answer» Which of the below is a set of solid objects? |
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| 19. |
Which of the following does not affect the magnetic properties of a material? |
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Answer» Which of the following does not affect the magnetic properties of a material? |
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| 20. |
Which statement about motion in the universe is not true? |
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Answer» Which statement about motion in the universe is not true? |
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| 21. |
How do earthquakes occur(explian in short) |
| Answer» How do earthquakes occur(explian in short) | |
| 22. |
When a bimetallic strip is heated, it- |
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Answer» When a bimetallic strip is heated, it-
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| 23. |
What happens when the two plate of earth's crust moving in opposite directions slide past one another ? |
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Answer» What happens when the two plate of earth's crust moving in opposite directions slide past one another ? |
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| 24. |
explain how do we differentiate between sound from guitar and sound from flute if all the parameters are same that is frequency wavelength and amplitude |
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Answer» explain how do we differentiate between sound from guitar and sound from flute if all the parameters are same that is frequency wavelength and amplitude |
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| 25. |
Why army camps are provided with caterpillar tracks?? |
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Answer» Why army camps are provided with caterpillar tracks?? |
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| 26. |
Identify the tense of the sentence. We have left the garage door open for you. |
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Answer» Identify the tense of the sentence. We have left the garage door open for you. |
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| 27. |
Why can't we see in the dark? |
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Answer» Why can't we see in the dark? |
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| 28. |
When a comb rubbed on hair is brought near bits of paper, it attracts them, because: |
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Answer» When a comb rubbed on hair is brought near bits of paper, it attracts them, because: |
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| 29. |
The magnitude of force in a spring depends on |
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Answer» The magnitude of force in a spring depends on |
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| 30. |
Mass × change in velocity = ___ × time interval. Fill in the blank: |
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Answer» Mass × change in velocity = |
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| 31. |
An artificial satellite is moving in a circular orbit of radius 42250 km. Calculate its speed if it takes 24 hours to revolve around the earth. |
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Answer» An artificial satellite is moving in a circular orbit of radius 42250 km. Calculate its speed if it takes 24 hours to revolve around the earth. |
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| 32. |
What chemical reaction takes place in the potatoes when the electrical current is being passed through it? |
| Answer» What chemical reaction takes place in the potatoes when the electrical current is being passed through it? | |
| 33. |
The velocity of a car is 18ms. Express this velocity in kmhr. |
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Answer» The velocity of a car is 18ms. Express this velocity in kmhr. |
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| 34. |
Does the type of liquid solution depends on the type of anode and cathode in electroplating? |
| Answer» Does the type of liquid solution depends on the type of anode and cathode in electroplating? | |
| 35. |
Suppose you have a simple pendulum. It sets the particles of air in vibration .Then why can't you hear any sound from it? |
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Answer» Suppose you have a simple pendulum. It sets the particles of air in vibration .Then why can't you hear any sound from it? |
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| 36. |
A resistance coil is made by combining two 2.5 ohm resistances in series. A 1.0 V steady voltage is applied across the two ends of the coil for 5 minutes. The heat generated is: |
| Answer» A resistance coil is made by combining two 2.5 ohm resistances in series. A 1.0 V steady voltage is applied across the two ends of the coil for 5 minutes. The heat generated is: | |
| 37. |
Name two planets which have been discovered with the help of telescope. |
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Answer» Name two planets which have been discovered with the help of telescope. |
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| 38. |
What is distilled water |
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Answer» What is distilled water |
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| 39. |
(a) What is the difference between static and sliding friction? For a given pair of objects, which of the two is greater? (b) How can a very heavy machine be moved conveniently from one place to another in a factory? (No crane is available for this purpose). |
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Answer» (a) What is the difference between static and sliding friction? For a given pair of objects, which of the two is greater? |
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| 40. |
What does this image depict? |
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Answer» What does this image depict?
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| 41. |
1.do mechanical waves lose energy as they travel through a medium? Why/why not? 2. What type of waves is an electro magnetic wave? |
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Answer» 1.do mechanical waves lose energy as they travel through a medium? Why/why not? 2. What type of waves is an electro magnetic wave? |
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| 42. |
Can the image formed by a plane mirror be projected onto a screen Can you please check my answer Ans: no the image formed by the plane mirror can't be projected on the screen as a plane mirror forms a virtual image and a virtual image can be obtained on the screen |
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Answer» Can the image formed by a plane mirror be projected onto a screen Can you please check my answer Ans: no the image formed by the plane mirror can't be projected on the screen as a plane mirror forms a virtual image and a virtual image can be obtained on the screen |
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| 43. |
If we want to pure a impure copper plate then it should be attached in place of electrode connected to negative terminal or positive terminal when the electrodes are immersed in CuSo4 solution? |
| Answer» If we want to pure a impure copper plate then it should be attached in place of electrode connected to negative terminal or positive terminal when the electrodes are immersed in CuSo4 solution? | |
| 44. |
Define density |
| Answer» Define density | |
| 45. |
is it important that gives light is also give heat? |
| Answer» is it important that gives light is also give heat? | |
| 46. |
Ability of the eye to see objects at all distance is called – |
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Answer» Ability of the eye to see objects at all distance is called – |
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| 47. |
The force exerted by a magnet on another magnet is a non-contact force. The force exerted by a magnet on a magnetic material will |
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Answer» The force exerted by a magnet on another magnet is a non-contact force. The force exerted by a magnet on a magnetic material will |
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| 48. |
___ regions are more prone to landslides. |
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Answer» |
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| 49. |
If no resultant force acts on a body then the body will be in |
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Answer» If no resultant force acts on a body then the body will be in |
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| 50. |
Which of the following demonstrates the law of reflection correctly? |
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Answer» Which of the following demonstrates the law of reflection correctly? |
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