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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. |
Which of the following statement about the motion is TRUE? |
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Answer» Which of the following statement about the motion is TRUE? |
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| 2. |
(a) What are longitudinal waves and transverse waves ? Explain with the help of labelled diagrams . (b) Give two examples each of longitudinal waves and transverse waves. |
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Answer» (a) What are longitudinal waves and transverse waves ? Explain with the help of labelled diagrams . (b) Give two examples each of longitudinal waves and transverse waves. |
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| 3. |
Which one of the following is not the unit of energy ? (a) joule (b) newton-metre (c) kilowatt (d) kilowatt-hour |
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Answer» Which one of the following is not the unit of energy ? (a) joule (b) newton-metre (c) kilowatt (d) kilowatt-hour |
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| 4. |
The velocity of ultrasonic sound in water is 1400 m. The depth of the ocean as detected by SONAR, if the time taken to receive the reflected wave is 15s, is |
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Answer» The velocity of ultrasonic sound in water is 1400 m. The depth of the ocean as detected by SONAR, if the time taken to receive the reflected wave is 15s, is |
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| 5. |
What transformation of energy takes place when current is drawn from a cell ? |
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Answer» What transformation of energy takes place when current is drawn from a cell ? |
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| 6. |
SI unit of pressure is pascal and this is denoted as |
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Answer» SI unit of pressure is pascal and this is denoted as |
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| 7. |
Sound wave has different speeds in different mediums because: |
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Answer» Sound wave has different speeds in different mediums because: |
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| 8. |
When a cell is connected in a circuit containing various electrical components, a current flows in the electrical circuit because of |
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Answer» When a cell is connected in a circuit containing various electrical components, a current flows in the electrical circuit because of |
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| 9. |
When is the work done by a force on a body : (a) positive, (b) negative, and (c) zero ? |
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Answer» When is the work done by a force on a body : (a) positive, (b) negative, and (c) zero ? |
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| 10. |
If you want to hear a train approaching from far away, why is it more convenient to put the ear to the track ? |
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Answer» If you want to hear a train approaching from far away, why is it more convenient to put the ear to the track ? |
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| 11. |
A trolly while going down an inclined plane as an acceleration of 2 cm.s-2 . What will be its velocity in 3 seconds after the start? |
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Answer» A trolly while going down an inclined plane as an acceleration of 2 cm.s-2 . What will be its velocity in 3 seconds after the start? |
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| 12. |
The __________ determines how tightly _________ a nucleus is. |
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Answer» The __________ determines how tightly _________ a nucleus is. |
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| 13. |
How is a sawtooth function defined?undefinedundefinedundefinedundefined |
Answer» How is a sawtooth function defined?
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| 14. |
Why is soft iron used as the core of the elctromagnet in an electric bell ? |
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Answer» Why is soft iron used as the core of the elctromagnet in an electric bell ? |
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| 15. |
In which of the following can the image formed be virtual? |
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Answer» In which of the following can the image formed be virtual? |
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| 16. |
What happens to the gravitational force between two objects if the mass of an object is tripled explain with the help of formula |
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Answer» What happens to the gravitational force between two objects if the mass of an object is tripled explain with the help of formula |
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| 17. |
A stone is dropped from a building top takes 4 seconds to reach the ground. What is the height of the building |
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Answer» A stone is dropped from a building top takes 4 seconds to reach the ground. What is the height of the building |
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| 18. |
Distance is a ________physical quantity whereas displacement is a _______ physical quantity. |
| Answer» Distance is a ________physical quantity whereas displacement is a _______ physical quantity. | |
| 19. |
In the case of a convex mirror, if the object is moved away from the mirror, how does the size of image change? |
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Answer» In the case of a convex mirror, if the object is moved away from the mirror, how does the size of image change? |
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| 20. |
What type of sound does simple vibrating pendulum create |
| Answer» What type of sound does simple vibrating pendulum create | |
| 21. |
The sun requires approximately ___ days for crossing a zodiac. |
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Answer» The sun requires approximately |
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| 22. |
What is the acceleration of freely falling body? |
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Answer» What is the acceleration of freely falling body? |
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| 23. |
Which part of a vibrates to produce sound? |
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Answer» Which part of a vibrates to produce sound? |
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| 24. |
What is the main source of energy for the earth ? |
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Answer» What is the main source of energy for the earth ? |
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| 25. |
Calculate the pressure at a depth of 100m below the surface of the sea. The density of sea water is 1024kgm3. |
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Answer» Calculate the pressure at a depth of 100m below the surface of the sea. The density of sea water is 1024kgm3. |
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| 26. |
Which of the following statement(s) is/are correct? |
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Answer» Which of the following statement(s) is/are correct? |
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| 27. |
The diagrams represent four measuring cylinders containing liquids. The mass and volume of the liquid in each cylinder are stated. Which two measuring cylinders could contain an identical liquid? (a) W and X (b) W and Y (c) X and Y (d) X and Z |
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Answer» The diagrams represent four measuring cylinders containing liquids. The mass and volume of the liquid in each cylinder are stated. Which two measuring cylinders could contain an identical liquid?
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| 28. |
Why the earth has gravitational force? |
| Answer» Why the earth has gravitational force? | |
| 29. |
State two advantages of an aneroid barometer over a simple barometer. |
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Answer» State two advantages of an aneroid barometer over a simple barometer. |
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| 30. |
A cheetah can achieve a peak velocity of 100 km per hour up to distances less than 500 meters. If the cheetah spots his prey at a distance of 100 meters. What is the minimum time it will take to get its prey if the average velocity attained by it is 90 km/h? |
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Answer» A cheetah can achieve a peak velocity of 100 km per hour up to distances less than 500 meters. If the cheetah spots his prey at a distance of 100 meters. What is the minimum time it will take to get its prey if the average velocity attained by it is 90 km/h? |
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| 31. |
The conversion of part of energy into an unuseful form of energy is called ______ |
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Answer» The conversion of part of energy into an unuseful form of energy is called ______ |
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| 32. |
An aeroplane accelerates down a runway at 3.20m/s2 for 32.8 seconds until lifts off from the ground. What is the distance travelled before takeoff? |
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Answer» An aeroplane accelerates down a runway at 3.20m/s2 for 32.8 seconds until lifts off from the ground. What is the distance travelled before takeoff? |
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| 33. |
Question 17 Which of the following ray diagram is correct for the ray of light incident on a lens as shown in figure 1? (a) Fig. A. (b) Fig. B. (c) Fig. C. (d) Fig. D. |
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Answer» Question 17 |
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| 34. |
Why ice floats on water |
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Answer» Why ice floats on water |
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| 35. |
Explain the characteristics of wave motion. |
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Answer» Explain the characteristics of wave motion. |
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| 36. |
The following data was obtained for a body of mass 1 kg dropped from a height of 5 metres: Distance above ground Velocity 5 m 0 m/s 3.2 m 6 m/s 0 m 10 m/s Show by calculations that the above data verifies the law of conservation of energy (Neglect air resistance). (g = 10 m/s2). |
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Answer» The following data was obtained for a body of mass 1 kg dropped from a height of 5 metres: Distance above ground Velocity 5 m 0 m/s 3.2 m 6 m/s 0 m 10 m/s Show by calculations that the above data verifies the law of conservation of energy (Neglect air resistance). (g = 10 m/s2). |
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| 37. |
A body of mass mis moved from ground to a height h. If gorce of gravity on mass of 1 kg is g newton, find : (a) the force needed to lift the body, (b) the work done in lifting the body and (c) the potential energy stored in the body. |
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Answer» A body of mass mis moved from ground to a height h. If gorce of gravity on mass of 1 kg is g newton, find : (a) the force needed to lift the body, (b) the work done in lifting the body and (c) the potential energy stored in the body. |
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| 38. |
To form a virtual image twice the size of the object, using a convex lens of focal length, (f) 20 cm, the object distance (u) must be ______. |
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Answer» To form a virtual image twice the size of the object, using a convex lens of focal length, (f) 20 cm, the object distance (u) must be ______. |
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| 39. |
Rate of change of displacement with time is called |
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Answer» Rate of change of displacement with time is called |
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| 40. |
Explain the following : (a) It is easier to cut with a sharp knife than with a blunt one. (b) Sleepers are laid below the rails. |
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Answer» Explain the following : |
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| 41. |
Name the form of energy (kinetic energy K or potential energy U) possessed in the following cases: (a) A moving cricket ball (b) A compressed spring (c) A moving bus (d) A stretched wire (e) An arrow shot out of a bow (f) A piece of stone placed on the roof. |
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Answer» Name the form of energy (kinetic energy K or potential energy U) possessed in the following cases: (a) A moving cricket ball (b) A compressed spring (c) A moving bus (d) A stretched wire (e) An arrow shot out of a bow (f) A piece of stone placed on the roof. |
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| 42. |
Which of these is an example of longitudinal wave? |
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Answer» Which of these is an example of longitudinal wave? |
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| 43. |
Kepler's laws |
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Answer» Kepler's laws |
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| 44. |
Two particles of equal mass are revolving in circular orbits of radii r and R wih the same period. Show that v:V=r:R |
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Answer» Two particles of equal mass are revolving in circular orbits of radii r and R wih the same period. Show that v:V=r:R |
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| 45. |
Question 52 Fill in the blanks to make the statement true. 1 hectare = ___ m2 |
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Answer» Question 52 Fill in the blanks to make the statement true. 1 hectare = |
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| 46. |
A spring balance is graduated on sea level. If a body is weighed with this balance at consecutively increasing heights from earth's surface, the weight indicated by the balance: |
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Answer» A spring balance is graduated on sea level. If a body is weighed with this balance at consecutively increasing heights from earth's surface, the weight indicated by the balance: |
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| 47. |
An electron moving with a velocity of 5 × 104 m per second enters into a uniform electric feild and acquires a uniform acceleration of 104 m per second square in the direction of its initial motion Calculate the time in which the electron would acquire a velocity double of its initial velocity and distance covered |
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Answer» An electron moving with a velocity of 5 × 104 m per second enters into a uniform electric feild and acquires a uniform acceleration of 104 m per second square in the direction of its initial motion Calculate the time in which the electron would acquire a velocity double of its initial velocity and distance covered |
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| 48. |
The density of a substance is given by : |
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Answer» The density of a substance is given by : |
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| 49. |
If two points are maintained at 5V each and a resistor of 10 ohms is connected across them, what is the current flowing between those two points? |
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Answer» If two points are maintained at 5V each and a resistor of 10 ohms is connected across them, what is the current flowing between those two points? |
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| 50. |
An insect moves along the sides of a wall of dimensions 12m × 5 m starting from one corner and reaches the diagonally opposite corner. If the insect takes 2 s for its motion, then find the ratio of average speed to average velocity of insect. |
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Answer» An insect moves along the sides of a wall of dimensions 12m × 5 m starting from one corner and reaches the diagonally opposite corner. If the insect takes 2 s for its motion, then find the ratio of average speed to average velocity of insect. |
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