Dual Nature of Radiation NEET Questions

Physics - Dual Nature of Matter and Radiation

Dual Nature of Radiation MCQ Questions


1.
Which experiment provided evidence for the particle nature of light?
A.
Photoelectric effect
B.
Young’s double-slit
C.
Compton scattering
D.
Blackbody radiation
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ANSWER :
A. Photoelectric effect
2.
What is the work function of a metal?
A.
Minimum energy required to remove an electron
B.
Energy required to emit a proton
C.
Energy gained by an electron
D.
Potential required for emission
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ANSWER :
A. Minimum energy required to remove an electron
3.
Which equation explains the photoelectric effect?
A.
Einstein’s equation
B.
Newton’s equation
C.
Planck’s equation
D.
Heisenberg’s equation
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ANSWER :
A. Einstein’s equation
4.
What happens if the frequency of incident light is below the threshold frequency?
A.
Photoemission occurs
B.
Photoemission stops
C.
Emission is spontaneous
D.
Electrons are emitted with delay
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ANSWER :
B. Photoemission stops
5.
Which experiment established the particle nature of light?

NEET - 2015

A.
Young’s double-slit experiment
B.
Photoelectric effect
C.
Compton effect
D.
Blackbody radiation
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ANSWER :
B. Photoelectric effect
6.
Who explained the photoelectric effect using quantum theory?
A.
Max Planck
B.
Albert Einstein
C.
Niels Bohr
D.
Rutherford
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ANSWER :
B. Albert Einstein