Calculate the momentum of a photon of light of wavelength 500nm .

Explanation

Since ` lambda = h / p `
`rArr P = h / lambda `
`= 6.63 xx 10^(-34) / 500 xx 10^(-9) J-s`
`= 6.63 / 5 xx 10^(-27) `
` = 1.326 xx 10^(-27)`
`= 1.33 xx 10^(-27) kg-m / s ` .