ICS Part 2 Physics Chapter 20 Short Questions Preparation


12th Class Physics
Short Questions Preparation

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Online Short Questions For Chapter 9 "ICS Part 2 Physics Chapter 20 Short Questions Preparation "

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Physics - ICS Part 2 Physics Chapter 20 Short Questions Preparation

Question # 1

Define population inversion and metastable stable.

  • Ans 1: A condition of matter in which more electrons are in a high energy state than in a lower energy state is called population inversion.
    A particular excited state of an atom that has longer lifetime than the ordinary excited states is called metastable state.
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Prepare Complete Set Wise Questions For Chapter 9 "ICS Part 2 Physics Chapter 20 Short Questions Preparation "

ICS Part 2 Physics Chapter 20 Short Questions Preparation - Set 1

Question # 1

Define population inversion and metastable stable.

  • Ans 1: A condition of matter in which more electrons are in a high energy state than in a lower energy state is called population inversion.
    A particular excited state of an atom that has longer lifetime than the ordinary excited states is called metastable state.
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ICS Part 2 Physics Chapter 20 Short Questions Preparation - Set 2

Question # 1

Define normal population and population inversion.

  • Ans 1: In normal population ,the lower energy state has a greater population than the higher energy state.
    Population inversion occurs when no more electron are in a higher energy state than in lower energy state.
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ICS Part 2 Physics Chapter 20 Short Questions Preparation - Set 3

Question # 1

Can x-rays be reflected,diffracted polarized just like any other eaves?Explain

  • Ans 1: Yes x rays can be reflected,refracted diffracted by crystal only and polarized just like any other waves.
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20th Chapter

ICS Part 2 Physics Chapter 20 Short Questions Preparation

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