what is the momentum of an electron having a wavelength of 10^-9m (h=6.6*10^-34

The momentum of an electron can be calculated using the formula:

Momentum = h / λ

Where:
h = Planck's constant = 6.6 x 10^-34
λ = wavelength of the electron = 10^-9m

Substitute the values into the formula:

Momentum = 6.6 x 10^-34 / 10^-9
Momentum = 6.6 x 10^-34 / 10^-9
Momentum = 6.6 x 10^-25 kg m/s

Therefore, the momentum of the electron is 6.6 x 10^-25 kg m/s.