Dual Nature of Radiation NEET Questions

Physics - Dual Nature of Matter and Radiation

Dual Nature of Radiation MCQ Questions


13.
What is the significance of de Broglie wavelength?
A.
Determines energy of a photon
B.
Determines intensity of light
C.
Determines momentum of a particle
D.
Has no significance
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ANSWER :
C. Determines momentum of a particle
14.
The stopping potential in the photoelectric effect depends on:

NEET - 2019

A.
Intensity of light
B.
Work function of the material
C.
Wavelength of light
D.
Speed of photoelectrons
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ANSWER :
C. Wavelength of light
15.
What is the relation between momentum (p) and wavelength (位) of a particle?
A.
位 = h/p
B.
p = h/位
C.
位 = p/h
D.
位 = v/h
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ANSWER :
A. 位 = h/p
16.
Which of the following supports the wave nature of electrons?
A.
Photoelectric effect
B.
Compton effect
C.
Davisson-Germer experiment
D.
Photoelectric effect
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ANSWER :
C. Davisson-Germer experiment
17.
The threshold frequency in the photoelectric effect is the:

NEET - 2021

A.
Minimum frequency required for photoemission
B.
Maximum frequency of incident light
C.
Minimum frequency of light required for refraction
D.
Frequency at which light gets absorbed completely
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ANSWER :
A. Minimum frequency required for photoemission
18.
In the photoelectric effect, increasing the intensity of incident light increases
A.
Number of emitted electrons
B.
Energy of emitted electrons
C.
Wavelength of emitted electrons
D.
Stopping potential
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ANSWER :
A. Number of emitted electrons