Question

What is the momentum of a photon having frequency `1.5 xx 10^(13) Hz` ?
A. `3.3 xx 10^(-29) kg m//s`
B. `3.3 xx 10^(-24) kg m//s`
C. `6.6 xx 10^(-34) kg m//s`
D. `6.6 xx 10^(-30) kg m//s`

Answer 1

Correct Answer - A
`p = (hv)/( c ) = (6.6 xx 10^(-34) xx 1.5 xx 10^(13))/(3 xx 10^(8))`
`= 3.3 xx 10^(-29) kg - m//sec`