Einstein's Photoelectric Equation(Particle Nature of Light) NEET Questions

Physics - Dual Nature of Matter and Radiation

Einstein's Photoelectric Equation(Particle Nature of Light) MCQ Questions


13.
Which factor determines the maximum kinetic energy of photoelectrons?
A.
Work function of metal
B.
Frequency of light
C.
Speed of electrons
D.
The stopping potential
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ANSWER :
B. Frequency of light
14.
What happens when the frequency of incident light is below the threshold frequency?
A.
Electrons are not emitted
B.
Electrons are emitted with reduced energy
C.
Electrons gain kinetic energy
D.
Electrons are emitted at a higher rate
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ANSWER :
A. Electrons are not emitted
15.
The work function of a metal depends on:
A.
Type of metal
B.
Temperature
C.
Surface roughness
D.
Photoelectric current
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ANSWER :
C. Surface roughness
16.
What does Einstein’s photoelectric equation demonstrate about light?

NEET - 2017

A.
Light behaves only as a wave
B.
Light has both wave and particle nature
C.
Light consists of continuous energy distribution
D.
Light does not interact with matter
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ANSWER :
B. Light has both wave and particle nature
17.
Which law is violated if light is considered only as a wave in photoelectric emission?
A.
Law of conservation of energy
B.
Newton’s laws
C.
Law of reflection
D.
Ohm’s Law
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ANSWER :
A. Law of conservation of energy
18.
The linear relationship between kinetic energy of electrons and frequency of incident light proves:
A.
The quantum nature of light
B.
The corpuscular theory of light
C.
Wave theory of light
D.
Photoelectric effect
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ANSWER :
B. The corpuscular theory of light