Class 12 Physics · Chapter 6 · Test 2
Compton Effect, Matter Waves
38 MCQs
38 questions · 35 min · 38 marks
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Sample questions
The first 5 of 38. Try each one, then tap to see the answer.
Question 1
The scattering of X-rays by loosely bound electrons of graphite was studied in 1923 by:
- AArthur Holly Compton
- BAlbert Einstein
- CMax Planck
- DDavisson
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Answer: A
Compton studied this scattering at Washington University in 1923.
Question 2
In Compton scattering the wavelength of the scattered X-rays is:
- ASmaller than the incident wavelength
- BEqual to the incident wavelength
- CZero
- DLarger than the incident wavelength
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Answer: D
Compton found that the scattered X-rays have a larger wavelength than the incident ones.
Question 3
The Compton effect could not be explained by:
- AClassical wave theory
- BPhoton theory
- CConservation of momentum
- DConservation of energy
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Answer: A
The increase in wavelength could not be explained by classical wave theory.
Question 4
Compton treated X-rays as photons with energy hc/λ and momentum:
- Ahλ
- Bh/λ
- Cλ/h
- Dhc
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Answer: B
A photon carries momentum h/λ.
Question 5
In the Compton collision of a photon and an electron the quantities conserved are:
- AEnergy only
- BMass only
- CWavelength
- DBoth energy and momentum
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Answer: D
The collision is treated as elastic with both energy and momentum conserved.
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