Question

If kinetic energy of an electron is increased 4 times the wavelength of the de broglie wave associated it would become​

Answer 1

Answer:

the wavelength would decrease by 2 times

Answer 2

Answer:

Kinetic energy of a particle E=  1/2  mv  2

 

If E is increased by 4 times, new velocity is double the old velocity=2v

debroglie wavelength λ=  h/mv

if velocity is doubled, λ is halved.