Question

calculate the wavelength of an electron moving at 3.0×10^10 centimetre per second​

Answer 1

v=3x10^-8m/s

By de Broglie wavelength equation,

Wavelength=h/mv

where h is planck constant=6.626*10^-34

mass of electron=9.1*10^-31kg

v=3*10^8 m/s

Calculate it so that you can have your practice