calculate the mass of a photon with wavelength 3.6 A

Answer

`6.139 xx 10^(-33) kg`

Explanation

`lambda = h/(m v) "or" m = h/(lambda v)`
`= (6.63 xx 10^(-34))/(3.6 xx 10^(-10) xx 3.0 xx 10^(8)) = 6.139 xx 10^(-33) kg`