Dual Nature of Radiation NEET Questions

Physics - Dual Nature of Matter and Radiation

Dual Nature of Radiation MCQ Questions


7.
What is the unit of work function?
A.
Joule
B.
Newton
C.
Electronvolt
D.
Watt
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ANSWER :
C. Electronvolt
8.
Which of the following phenomena best supports the wave nature of light?

NEET - 2016

A.
Photoelectric effect
B.
Compton scattering
C.
Pair production
D.
Interference
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ANSWER :
D. Interference
9.
Which of the following does NOT affect the photoelectric current?
A.
Intensity of incident light
B.
Wavelength of incident light
C.
Nature of metal
D.
Frequency of incident light
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ANSWER :
B. Wavelength of incident light
10.
The stopping potential in a photoelectric experiment depends on
A.
Frequency of incident light
B.
Intensity of incident light
C.
Threshold frequency
D.
Temperature of metal
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ANSWER :
A. Frequency of incident light
11.
Which of the following statements is true regarding photons?

NEET - 2018

A.
They have mass and charge
B.
They have zero rest mass and move at the speed of light
C.
They have a positive charge
D.
They have infinite energy
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ANSWER :
B. They have zero rest mass and move at the speed of light
12.
Which of the following particles exhibits both wave and particle nature?
A.
Electrons only
B.
Protons only
C.
Both electrons and protons
D.
None of these
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ANSWER :
C. Both electrons and protons