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JEE · NEET Previous Year Question

$Hydrogen atom is in its n^{th} energy state. If de-Broglie wavelength of the electron is λ,then$

Topic: JEE PYQ

Answer: D. Full step-by-step solution below.

A $λ \propto \frac{1}{n ^{2}}$
B $λ \propto \frac{1}{n}$
C $λ \propto n^{2}$
D $λ \propto n$

Correct answer: D

Solution

(d) λ α \frac{1}{V} and Vα \frac{1}{n} (∵ λ = \frac{h}{p}) So λ α n

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