Matter Waves-Wave Nature of Particle NEET Questions

Physics - Dual Nature of Matter and Radiation

Matter Waves-Wave Nature of Particle MCQ Questions


13.
The wave nature of matter was first confirmed by:
A.
Photoelectric effect
B.
Compton effect
C.
Davisson-Germer experiment
D.
Young’s double-slit experiment
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ANSWER :
C. Davisson-Germer experiment
14.
What happens to the de Broglie wavelength of an electron when its kinetic energy is increased?
A.
Increases
B.
Decreases
C.
Remains constant
D.
Depends on external conditions
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ANSWER :
B. Decreases
15.
The wavelength associated with a particle due to its wave nature is called:
A.
Photon wavelength
B.
de Broglie wavelength
C.
Matter wavelength
D.
Planck wavelength
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ANSWER :
B. de Broglie wavelength
16.
Matter waves are associated with:

NEET - 2017

A.
Only charged particles
B.
Only neutral particles
C.
All moving particles
D.
Only photons
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ANSWER :
C. All moving particles
17.
Which of the following equations represents the de Broglie wavelength for a non-relativistic particle?
A.
λ = h/p
B.
λ = h/√(2mE)
C.
λ = mv/h
D.
λ = p/m
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ANSWER :
B. λ = h/√(2mE)
18.
For an electron accelerated by a potential difference V, the de Broglie wavelength is given by:
A.
λ = h/√(2meV)
B.
λ = hc/E
C.
λ = h/pv
D.
λ = h/√2eV
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ANSWER :
B. λ = hc/E