If the total energy of a radiation of frequency 1014 Hz is 6.63 J, cal

1.	If the total energy of a radiation of frequency 1014 Hz is 6.63 J, calculate the number of photons in the radiation.
Answer» E = nhv, where hv is the energy of a photon in a radiation of frequency v and n is the number of photons in the radiation. ∴ n = \(\cfrac E{hv}\) = \(\cfrac{(6.63)}{(6.63\times10^{-34})(10^{14})}\) = 10²⁰

If the total energy of a radiation of frequency 1014 Hz is 6.63 J, calculate the number of photons in the radiation.

Answer»

E = nhv, where hv is the energy of a photon in a radiation of frequency v and n is the number of photons in the radiation.

∴ n = \(\cfrac E{hv}\) = \(\cfrac{(6.63)}{(6.63\times10^{-34})(10^{14})}\) = 10²⁰