Use of X-Rays NDA Questions

NDA Physics

Use of X-Rays MCQ Questions


13.
What concept states that light exhibits both wave-like and particle-like properties?
A.
Complementarity principle
B.
Uncertainty principle
C.
Superposition principle
D.
Correspondence principle
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ANSWER :
A. Complementarity principle
14.
The energy of a photon is directly proportional to its
A.
Wavelength
B.
Frequency
C.
Amplitude
D.
Velocity
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ANSWER :
B. Frequency
15.
What is the main evidence for the wave nature of matter?
A.
Blackbody radiation
B.
Electron diffraction
C.
Compton effect
D.
Photoelectric effect
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ANSWER :
B. Electron diffraction
16.
According to the Heisenberg uncertainty principle, what pairs of properties cannot be precisely known simultaneously?
A.
Position and time
B.
Position and velocity
C.
Position and momentum
D.
Energy and momentum
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ANSWER :
C. Position and momentum
17.
The work function of a metal is the
A.
Maximum energy of emitted photoelectrons
B.
Minimum energy required to emit photoelectrons
C.
Kinetic energy of photoelectrons
D.
Potential energy of photoelectrons
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ANSWER :
B. Minimum energy required to emit photoelectrons
18.
Which experiment confirmed the wave nature of electrons?
A.
Davisson-Germer experiment
B.
Rutherford scattering experiment
C.
Millikan oil drop experiment
D.
Stern-Gerlach experiment
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ANSWER :
A. Davisson-Germer experiment