ICS Part 2 Physics Chapter 20 Short Questions Preparation


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

  • Total Questions10

  • Available Sets3

Start Test Download PDF

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.
Submit

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

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.
Submit

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

Question # 1

What are the advantages of laser over ordinary light?

  • Ans 1: Laser light has many advantages over ordinary light such as laser light is
    1. Coherent
    2. Intense
    3. Monochromatic
    4. Unidirectional
Submit

ICS Part 2 Physics Chapter 20 Short Questions Preparation - Set 3

Question # 1

Distinguished between stimulated emission and spontaneous emission.

  • Ans 1: Stimulated emission: If a atom is excited for a longer lifetime of about 10-3sec than an incident photon of energy equal to the difference of two energy levels induces the atom to decay by emitting a photon that travel in the direction of incident photon.This process is called stimulated or induced emission.
  • Ans 2: Spontaneous Emission: As excited is highly unstable with life time of
    10-8sec,so electron will de excite itself with emission of a photon in any arbitrarydirection is called spontaneous emission.
Submit

ic-science-white
Physics
20th Chapter

ICS Part 2 Physics Chapter 20 Short Questions Preparation

Share your comments & questions here

  • No comments yet. Be the first to comment!

Is this page helpful?