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12th Class Physics
Short Questions Preparation
Start Chapter 19 Preparation
12th Class Physics Chapter Wise Preparation
Online Short Questions For Chapter 8 "ICS Part 2 Physics Chapter 19 Short Questions Preparation "
Try The Short Questions For ICS Part 2 Physics Chapter 19 Short Questions Preparation
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Total Questions10
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Available Sets3
Physics - ICS Part 2 Physics Chapter 19 Short Questions Preparation
Question # 1
Define work function and threshold frequency.
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Ans 1: The minimum amount of energy required to remove electrons from a metal surface is called work function of this metal.The minimum frequency below which photoelectric effect can not occur from a metal surface is called threshold frequency of this metal.
ICS Part 2 Physics Chapter 19 Short Questions Preparation - Set 1
Question # 1
Define work function and threshold frequency.
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Ans 1: The minimum amount of energy required to remove electrons from a metal surface is called work function of this metal.The minimum frequency below which photoelectric effect can not occur from a metal surface is called threshold frequency of this metal.
ICS Part 2 Physics Chapter 19 Short Questions Preparation - Set 2
Question # 1
When light shine on surface,is momentum transferred to metal surface?
- Ans 1: Yes when light shine on surface,momentum is transferred to metal surface and also the energy.So metal is heated up.
ICS Part 2 Physics Chapter 19 Short Questions Preparation - Set 3
Question # 1
A satellite is orbiting around earth.Is its frame of reference inertial or non-inertial ?Justify your answer.
- Ans 1: The motion of the satellite is synchronized with the earth so it is in the same frame of reference in which earth lies.Hence the frame of reference will be inertial.
