Bohr Atomic Model in Hindi

Bohr Atomic Model in Hindi. We covered all the Bohr Atomic Model in Hindi in this post for free so that you can practice well for the exam.

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Mock test on Bohr Atomic Model for Students

Bohr’s atomic model is an improvement over Rutherford’s model and is based on:

a) Maxwell’s electromagnetic theory

b) Newton’s laws of motion

c) Planck’s quantum theory

d) Huygens’ wave theory

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According to Bohr’s postulates, an electron present in a selected quantum orbit:

a) Continuously absorbs energy

b) Continuously emits energy

c) Both absorbs and emits energy

d) Neither absorbs nor emits energy

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As per Bohr’s atomic theory, the angular momentum of an electron in an allowed orbit is proportional to the:

a) Inverse of the principal quantum number

b) Square of the principal quantum number

c) Cube of the principal quantum number

d) Principal quantum number

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In Bohr’s model, which physical quantity is quantized and can exist only in integral multiples of h/27 is?

a) Angular momentum

b) Linear momentum

c) energy–momentum

d) Quantum frequency

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Bohr’s atomic model gained acceptance mainly because it successfully explained:

a) Relativistic effects

b) Nuclear properties

c) The experimentally observed hydrogen Spectrum

d) The size of the nucleus

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Bohr modified Rutherford’s atomic model by introducing the condition that:

a) Orbiting electrons continuously emit Light

b) Electrons are restricted to specific permitted orbits

c) All electrons possess identical Mass

d) All nuclei of an element have the same charge

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While formulating his atomic theory, Bohr applied the principle of conservation of:

a) Angular momentum

b) Linear momentum

c) energy–momentum

d) Quantum frequency

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According to Bohr’s model, an electron can revolve steadily around the nucleus only if it moves in a:

a) Continuously expanding orbit

b) Gradually shrinking orbit

c) Orbit of fixed but arbitrary radius

d) Allowed or quantized orbit

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With an increase in the radius of an electron’s orbit:

a) Kinetic energy decreases and potential energy increases

b) Kinetic energy increases and potential energy decreases

c) Both kinetic and potential energies decrease

d) Both kinetic and potential energies increase

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If the time period of an electron in the first Bohr orbit is T, then the time period in the second orbit is:

a) 8T

b) 4T

c) 2T

d) T/8

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An electron revolving around the nucleus possesses:

a) Only potential energy

b) Only kinetic energy

c) Both kinetic and potential energy

d) Zero energy

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We covered all the bohr atomic model in Hindi above in this post for free so that you can practice well for the exam.

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