Home Physics Atomic and Nuclear Physics Telangana & AP CET Previous Year Question An electron in a hydrogen atom undergoes a t…
Physics Atomic and Nuclear Physics Telangana & AP CET Previous Year Question MCQ (Single Correct)

An electron in a hydrogen atom undergoes a transition from a higher energy level to a lower energy level. The incorrect statement of the following is

A
Kinetic energy of the electron increases
B
Velocity of the electron increases
C
Angular momentum of the electron remains constant
D
Wavelength of de-Broglie wave associated with the motion of electron decreases

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The correct answer is:
C

As the radius of the orbit will change due to transition from a higher energy level to a lower energy level. Therefore angular momentum will not remain constant.

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