Matter Waves-Wave Nature of Particle NEET Questions

Physics - Dual Nature of Matter and Radiation

Matter Waves-Wave Nature of Particle MCQ Questions


7.
The de Broglie wavelength of a particle is inversely proportional to its:
A.
Velocity
B.
Momentum
C.
Charge
D.
Mass
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ANSWER :
D. Mass
8.
If the velocity of a particle is doubled, its de Broglie wavelength:
A.
Remains constant
B.
Is halved
C.
Doubles
D.
Becomes one-fourth
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ANSWER :
B. Is halved
9.
Which of the following correctly represents the relation between momentum (p) and wavelength (位)?
A.
p = h位
B.
p = h/位
C.
p = 位/h
D.
位 = hp
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ANSWER :
B. p = h/位
10.
For a proton and an electron moving with the same velocity, which has a shorter de Broglie wavelength?
A.
Proton
B.
Electron
C.
Both have the same
D.
Cannot be determined
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ANSWER :
A. Proton
11.
Which scientist proposed the wave nature of moving particles?

NEET - 2015

A.
Max Planck
B.
Albert Einstein
C.
Louis de Broglie
D.
Werner Heisenberg
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ANSWER :
C. Louis de Broglie
12.
As the mass of a particle increases, its de Broglie wavelength:
A.
Remains the same
B.
Decreases
C.
Increases
D.
Fluctuates
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ANSWER :
B. Decreases