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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
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 1
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 2
Question # 1
How can spectrum of hydrogen contain so many lines,whereas hydrogen atom contain one electron?
- Ans 1: The single electron in hydrogen atom occupies ground state but it can be excited to several states by absorbing energy.During de-excitation ,it can emit several lines of different wavelength.
ICS Part 2 Physics Chapter 20 Short Questions Preparation - Set 3
Question # 1
What do we mean when we say that the atom is excited?
- Ans 1: When energy from some external source is provide to an atom in its normal state,then its electron will jump from lower energy state to higher energy state.And atom is said to be excited.
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