Dual Nature of Matter and Radiation NDA Questions

NDA Physics

Dual Nature of Matter and Radiation MCQ Questions


7.
What did the Compton effect demonstrate about photons?
A.
They have mass
B.
They have momentum
C.
They are particles of zero energy
D.
They are unaffected by electrons
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ANSWER :
B. They have momentum
8.
What is the shift in wavelength observed in the Compton effect known as?
A.
Frequency shift
B.
Wavelength expansion
C.
Compton shift
D.
Doppler shift
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ANSWER :
C. Compton shift
9.
Which particles are involved in the Compton effect?
A.
Protons and photons
B.
Neutrons and electrons
C.
Photons and electrons
D.
Ions and photons
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ANSWER :
C. Photons and electrons
10.
In the Compton effect, what happens to the photon after it interacts with an electron?
A.
It is absorbed
B.
It is reflected with no energy change
C.
It is scattered with reduced energy
D.
It is annihilated
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ANSWER :
C. It is scattered with reduced energy
11.
What implication does the uncertainty principle have for particles at the quantum level?
A.
Particles have definite trajectories
B.
Particles do not have definite trajectories
C.
Particles can be observed without any disturbance
D.
Particles cannot be observed at all
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ANSWER :
B. Particles do not have definite trajectories
12.
The photoelectric effect supports the concept that light
A.
has a wave nature.
B.
travels faster than sound.
C.
has a particle nature.
D.
is a form of kinetic energy.
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ANSWER :
C. has a particle nature.