Photoelectric Effect NEET Questions

Physics - Dual Nature of Matter and Radiation

Photoelectric Effect MCQ Questions


1.
Which scientist first explained the photoelectric effect?
A.
Albert Einstein
B.
Max Planck
C.
Isaac Newton
D.
Niels Bohr
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ANSWER :
A. Albert Einstein
2.
Who discovered the photoelectric effect?
A.
Einstein
B.
Hertz
C.
Planck
D.
Newton
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ANSWER :
B. Hertz
3.
Which scientist explained the photoelectric effect using quantum theory?
A.
Planck
B.
Einstein
C.
Bohr
D.
Rutherford
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ANSWER :
B. Einstein
4.
In the photoelectric effect, electrons are ejected from a metal surface when it is exposed to:
A.
High temperature
B.
Strong magnetic field
C.
Light of sufficient frequency
D.
High pressure
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ANSWER :
C. Light of sufficient frequency
5.
The minimum energy required to eject an electron from a metal surface is called:
A.
Threshold energy
B.
Kinetic energy
C.
Binding energy
D.
Activation energy
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ANSWER :
A. Threshold energy
6.
The photoelectric effect proves that light has which nature?
A.
Wave
B.
Particle
C.
Both wave and particle
D.
Neither wave nor particle
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ANSWER :
B. Particle