Question

calculate the wavelength of moving body of mass 0.2g with a velocity of 20g​

Answer 1

Explanation:

KE = 1/2 mv2

from this KE will be

KE = 1/2 * 0.2 * 20*20

KE = 40

from de browglie equation

KE = hc/ Wavelength

from this

wavelength= 0.49695 * 10 ki power -26

I hope u understand...