Question

if kinetic energy of an electron is increased to nine times the de Broglie wavelength associated with it how many times

Answer 1

Gopikrishnan Ravindran, BSMS Physics & Chemistry, Indian Institutes of Science Education and Research (2022)

Answered Jul 21, 2017

We have the formula,

wavelength = h/sq rt(2mK.E)

h - Plank’s constant

m-mass of the particle

K.E - Kinetic Energy of the particle

sq rt - Square root

Using this we can get the relationship between wavelength and kinetic energy of the particle.

The relation is : wavelength 1/wavelength 2 = sq rt(10/9)

therefore, wavelength 2 = sq rt(9/10)*wavelength 1