How fast is an electron moving if it has a wavelength equal to the distance it travels in one second? (mass of electron = 9.1 xx 10^(-31)kg)

How fast is an electron moving if it has a wavelength equal to the dis

1.	How fast is an electron moving if it has a wavelength equal to the distance it travels in one second? (mass of electron = 9.1 xx 10^(-31)kg)
Answer» SOLUTION :Here `v = lamda`. HENCE, `lamda = (H)/(mv) " gives" v^(2) = (h)/(m)` or `v = sqrt((h)/(m)) = sqrt((6.626 xx 10^(-34))/(9.1 xx 10^(-31))) = 2.698 xx 10^(-2) ms^(-1)`