ICS Part 2 Physics Chapter 20 Short Questions Preparation


12th Class Physics
Short Questions Preparation

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Physics - ICS Part 2 Physics Chapter 20 Short Questions Preparation

Question # 1

Write two postulate of Bohr's model of H-atom.

  • Ans 1:
    • An electron ,bound to the nucleus in an atom,can moved around the nucleus in certain circular orbits without radiating,These orbits are called the discrete stationary orbits.
    • Only those stationary orbits are allowed for which orbital angular momentum is equal to an integral multiple mvr=nh/2π.
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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

Write two postulate of Bohr's model of H-atom.

  • Ans 1:
    • An electron ,bound to the nucleus in an atom,can moved around the nucleus in certain circular orbits without radiating,These orbits are called the discrete stationary orbits.
    • Only those stationary orbits are allowed for which orbital angular momentum is equal to an integral multiple mvr=nh/2π.
Submit

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

Question # 1

Can electron reside inside the nucleus?

  • Ans 1: No,electron cannot reside inside the nucleus .If electron resides inside nucleus then uncertainty in position.
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ICS Part 2 Physics Chapter 20 Short Questions Preparation - Set 3

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

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