Use of X-Rays NDA Questions

NDA Physics

Use of X-Rays MCQ Questions


7.
Which of the following quantities is quantized according to Planck's theory?
A.
Momentum
B.
Energy
C.
Wavelength
D.
Velocity
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ANSWER :
B. Energy
8.
The Compton effect provides evidence for the
A.
Wave nature of electrons
B.
Wave nature of light
C.
Particle nature of light
D.
Particle nature of electrons
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ANSWER :
C. Particle nature of light
9.
The wavelength associated with a moving particle is given by
A.
Planck's constant
B.
Heisenberg’s uncertainty principle
C.
de Broglie's equation
D.
Schrödinger's equation
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ANSWER :
C. de Broglie's equation
10.
Which physical constant is crucial in determining the energy of a photon?
A.
Avogadro's number
B.
Planck's constant
C.
Boltzmann constant
D.
Faraday's constant
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ANSWER :
B. Planck's constant
11.
In the photoelectric effect, the kinetic energy of emitted electrons depends on
A.
The intensity of light
B.
The frequency of light
C.
The wavelength of light
D.
The polarization of light
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ANSWER :
B. The frequency of light
12.
What is the effect of increasing the intensity of light in the photoelectric effect?
A.
Increases kinetic energy of electrons
B.
Increases number of emitted electrons
C.
Decreases wavelength of emitted electrons
D.
No effect
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ANSWER :
B. Increases number of emitted electrons