The de-Broglie wavelength l of a particle with mass m and ki... | PHYSICS - DE BROGLIE'S EXPLANATION OF BOHR'S SECOND POSTULATE OF QUANTISATION | SolveeIt | Solveeit

Today, August 19

Question

The de-Broglie wavelength l of a particle with mass m and kinetic energy E is given by –

A

$\lambda = h\sqrt{2mE}$

B

$\lambda = \frac{\sqrt{2mE}}{h}$

C

$\lambda = \frac{h}{\sqrt{2mE}}$

D

$\lambda = \frac{hE}{\sqrt{2mE}}$

Answer

$\lambda = h\sqrt{2mE}$

Explanation

Solution

$\lambda = \frac{h}{P} = \frac{h}{\sqrt{2m(k.a.)}}$