If the momentum of electron is changed by P, then the

If the momentum of electron is changed by P, then the de Broglie wavelength associated with it changes by 0.5%. The initial momentum of electron will be :

The de-Broglie’s wavelength associated with the moving electron

λ	h
	P

Now, according to problem

	dλ	= -	dP
	λ		P

	0.5	=	dP
	100		P'

P′ = 200 P