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Physics-Hydrogen Atom

NEET Physics Hydrogen Atom MCQ Question

Type: MCQ-numerical-Medium-Class 12

Using the relation between orbit radius and electron velocity in a hydrogen atom, which is the correct expression for the kinetic energy of the electron in terms of the orbit radius r?

A

K = e^2 / (8 * π * ε₀ * r)

B

K = e^2 / (16 * π * ε₀ * r)

C

K = e^2 / (4 * π * ε₀ * r)

D

K = e^2 / (2 * π * ε₀ * r)

Correct Answer

Option A

Detailed Explanation

The kinetic energy of the electron is given by K = e^2 / (8 * π * ε₀ * r) as derived from the relation 2 * K = e^2 / (4 * π * ε₀ * r).

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