Dual Nature of Matter NEET Questions

Physical Chemistry - Atomic Structure

Dual Nature of Matter MCQ Questions


7.
A photon and an electron have the same De Broglie wavelength. Which has higher momentum?
A.
Photon
B.
Electron
C.
Both same
D.
Can't say
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ANSWER :
A. Photon
8.
If the momentum of a particle is increased 4 times, its De Broglie wavelength:

NEET - 2017

A.
Becomes 4 times
B.
Becomes 1/4th
C.
Remains the same
D.
Doubles
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ANSWER :
B. Becomes 1/4th
9.
De Broglie equation applies to:
A.
Only microscopic particles
B.
Only macroscopic particles
C.
Both microscopic & macroscopic
D.
Only photons
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ANSWER :
C. Both microscopic & macroscopic
10.
What is the correct relation between momentum and De Broglie wavelength?

NEET - 2020

A.
Ī» āˆ 1/p
B.
Ī» āˆ p
C.
Ī» āˆ 1/pĀ²
D.
Ī» āˆ pĀ²
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ANSWER :
A. Ī» āˆ 1/p
11.
Which of the following is NOT a characteristic of matter waves?
A.
They are electromagnetic in nature
B.
They exhibit diffraction
C.
They are associated with moving particles
D.
Their wavelength is inversely proportional to momentum
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ANSWER :
A. They are electromagnetic in nature
12.
The De Broglie wavelength of an electron in a hydrogen atom is comparable to:
A.
Size of the nucleus
B.
Size of an atom
C.
Size of a molecule
D.
Size of a cell
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ANSWER :
B. Size of an atom