Bohr Model NEET Questions

Physics - Atoms and Nuclei

Bohr Model MCQ Questions


1.
Which postulate of Bohr's model explains the stability of electrons in an atom?
A.
Quantization of angular momentum
B.
Electron wave nature
C.
Centripetal force balance
D.
Bohr-Sommerfeld condition
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ANSWER :
A. Quantization of angular momentum
2.
According to Bohr’s model, electrons revolve around the nucleus in ___.
A.
Elliptical orbits
B.
Discrete energy levels
C.
Random orbits
D.
Circular orbits
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ANSWER :
D. Circular orbits
3.
Bohr’s model successfully explained the spectrum of which element?
A.
Helium
B.
Lithium
C.
Hydrogen
D.
Carbon
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ANSWER :
C. Hydrogen
4.
Which quantity remains constant for an electron in a stationary orbit according to Bohr’s model?
A.
Velocity
B.
Angular momentum
C.
Energy
D.
Momentum
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ANSWER :
B. Angular momentum
5.
What is the energy of an electron in the first orbit of hydrogen (in eV)?
A.
-13.6 eV
B.
-3.4 eV
C.
-1.51 eV
D.
-0.85 eV
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ANSWER :
A. -13.6 eV
6.
Bohr’s model of the atom is based on which concept?

NEET - 2015

A.
Uncertainty principle
B.
Wave nature of electrons
C.
Quantization of angular momentum
D.
Photoelectric effect
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ANSWER :
C. Quantization of angular momentum