Question

The blue color of the sky results from the scattering of sunlight by air molecules. The blue light has a frequency of about 7x10^14 Hz (a) calculate the wavelength in nm, associated with this radiation and (b) calculate the energy, in Joules, of a single photon associated with this frequency.

Answer 1

You should be able to solve (a) since I answered your other question. It's the exact same thing (b) is using the equation\[E _{photon} = {hc \over \lambda}\] where h is plancks constant, c is the speed of light and lambda is the wavelength calculated from (a).