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12th Class Physics
Short Questions Preparation
Start Chapter 20 Preparation
12th Class Physics Chapter Wise Preparation
Online Short Questions For Chapter 9 "ICS Part 2 Physics Chapter 20 Short Questions Preparation "
Try The Short Questions For ICS Part 2 Physics Chapter 20 Short Questions Preparation
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Total Questions10
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Available Sets3
Physics - ICS Part 2 Physics Chapter 20 Short Questions Preparation
Question # 1
Define population inversion and metastable stable.
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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.
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.
ICS Part 2 Physics Chapter 20 Short Questions Preparation - Set 2
Question # 1
Is energy conserved when an atom emits a photon of light?
- Ans 1: Yes energy is conserved when an excited atom emits a photon of light.When atom is excited ,energy is supplied .The same energy is emitted in the form of photon when it return back to its ground state.
ICS Part 2 Physics Chapter 20 Short Questions Preparation - Set 3
Question # 1
Is energy conserved when an atom emits a photon of light?
- Ans 1: Yes energy is conserved when an excited atom emits a photon of light.When atom is excited ,energy is supplied .The same energy is emitted in the form of photon when it return back to its ground state.
