What is d-B wavelength associated with an electron with a speed of `5.4 xx 10^6 m//s`

Calculate the wavelength associated with an electron moving with a velocity of 10^(3) m s^(-1).

Calculate de Broglie’s wavelength associated with an electron moving with a velocity equal to l/10th that of light.

Find de-Broglie wavelength associated with an electrons moving with velocity 0.6 C. Given, rest mass of electron = 9.1 xx 10^-31 kg , h=6.63 xx 10^-34 Js .

Calculate the de-Broglie wavelength for electron moving with speed of 6 xx 10^5 m s^(-1) .