Physics Questions Practice Question and Answer
8 Q: Which is the largest source of energy on earth?
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60b4b317f2c446136b8b6a5c- 1Suntrue
- 2woodfalse
- 3Moonfalse
- 4Coalfalse
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Answer : 1. "Sun"
Q: The power of a lens is -2.0 D. Here ‘D’ stands for ________.
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60ffbd12d984302df240ac39- 1distancefalse
- 2dilationfalse
- 3dioptretrue
- 4degreefalse
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Answer : 3. "dioptre"
Q: Planetary scientists call the thin gaseous envelope around the Moon as the _______.
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62bece2d1d322d793f53ca68- 1lunar stratospherefalse
- 2lunar exospheretrue
- 3lunar endospherefalse
- 4lunar thermospherefalse
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Answer : 2. "lunar exosphere "
Q: What does an electric dipole experience when it is kept in the non-uniform electric field?
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63c8e9d71c47ef334be0efc0- 1Only a forcefalse
- 2Only torquefalse
- 3Force and torque bothtrue
- 4Neither force nor torquefalse
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Answer : 3. "Force and torque both"
Explanation :
An electric dipole always experiences a torque when placed in uniform as well as non-uniform electric field. But in non-uniform electric field, dipole will also experience net force of attraction. So the electric dipole in non-uniform electric field experiences both torque and force.
Q: Which set of conditions represents the easiest way to liquefy agas?
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5f2cddb7be9f31290fb7cb5c- 1Low temperature and low pressurefalse
- 2High temperature and high pressurefalse
- 3Low temperature and high pressuretrue
- 4High temperature and low pressurefalse
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Answer : 3. "Low temperature and high pressure "
Q: Which of the following is correct about uniform acceleration?
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64a2adc98dcbe3218b096682- 1An object moving on friction-less surface can gain uniform acceleration.false
- 2An object under free fall is an example of uniform acceleration.true
- 3An object moving with constant speed is an example of uniform acceleration.false
- 4Motion of a spring is an example of uniform acceleration.false
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Answer : 2. "An object under free fall is an example of uniform acceleration."
Explanation :
1. The change in velocity of an object at equal time intervals is called uniform acceleration.
2. A freely falling object is an example of uniform acceleration.
Q: What type of current is obtained from dynamo?
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5fe45b9a00c5087b4d132da3- 1Direct Sectiontrue
- 2alternating currentfalse
- 3both streamsfalse
- 4None of thesefalse
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Answer : 1. "Direct Section"
Q: Who is considered as the ultimate source of all forms of energy?
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60b4b23cc6545e407514f717- 1Coalfalse
- 2Atomfalse
- 3Waterfalse
- 4Suntrue
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