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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
How does a Kax-rays differ KbX-rays?
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Ans 1: When an electron from L -shell jumps to occupy the hole in K- shell Kax-rays is emitted .AndWhen an electron from M -shells jumps to occupy the hole in K-Shell KbX-rays is emited.
ICS Part 2 Physics Chapter 20 Short Questions Preparation - Set 1
Question # 1
How does a Kax-rays differ KbX-rays?
-
Ans 1: When an electron from L -shell jumps to occupy the hole in K- shell Kax-rays is emitted .AndWhen an electron from M -shells jumps to occupy the hole in K-Shell KbX-rays is emited.
ICS Part 2 Physics Chapter 20 Short Questions Preparation - Set 2
Question # 1
Bohr's theory of hydrogen atom is based upon several assumptions.Do any of these assumptions contradict classical physics?
- Ans 1: Bohr's first assumptions contradicts classical physics.Bohr said that electron do not radiate energy during revolving while according to classical physics,electron radiate energy during revolving and fall into the nucleus which is impossible.
ICS Part 2 Physics Chapter 20 Short Questions Preparation - Set 3
Question # 1
Differentiate between Line and Band spectrum.
- Ans 1: Line spectrum: When electron jumps from higher orbit to lower orbit ,it emits energy,This emission of energy constitutes spectral line,This is called the line spectrum.
- Ans 2: Band spectrum:is produced by molecules,They are the groups of lines which are closely spaced to another.
