Question

Show that de- Broglie's wave length is inversely proportional to the velocity of the particle​

Answer 1

When an object behaves as a particle in motion, it has an energy proportional to its mass (m) and speed with which it moves through space (s). ... Thus, the de Broglie equation suggests that the wavelength ( ) of any object in motion is inversely proportional to its momentum.

Answer 2

De-Broglie gave relationship between wavelength and momentum of a body. The relationship is

​$(lambda) = h/ mv$

Hence given statement is true.

that de- broglie's wavelength is inversely proportional to the velocity of the particle.