Calculate the frequency and energy of a photon of wavelength 589 nm.

Explanation

Frequency, `v=(c )/(lamda) =(3.0xx10^(8) ms^(-1))/(589xx10^(-9) m) =5.093xx10^(-14) s^(-1)`
Energy, E =hv `=6.626 xx10^(-34) J xx 5.093xx10^(14) s^(-1)=3.375xx10^(-19) J`