Question

Calculate the wavelength of an electron moving with velocity of 2.05 into 10 to the power 7 M per second

Answer 1

Explanation:

Velocity = 2.05 X 10^7 m/s

Wavelength=c/u

                   = 3 X 10^8/ 2.05 X 10^7

                   = 3/2.05 X 10

                   =30/2.05

                   = 14.6 (or) 15 (approx)