Question

If the total energy of radiation of frequency 10^14 Hz is 6.635 calculate the number of Photonsin the radiatio​

Answer 1

Answer:

If the total energy of radiation of frequency 10^14 Hz is 6.635J, the number of Photons in the radiation is ​$10^{20}$

Explanation:

• According to the quantum theory of radiation, the photon energy is quantized

• For radiation of frequency (ν) the energy (E) is given as

       $E=nh$ν

       where,

       n-number of photons

       $h=6.6*10^{-34} Js$-Planck's constant

From the question, we have

the energy of the radiation $E=6.635J$

frequency of the radiation ν $=10^{14} Hz$

by rearranging the equation,

number of photons in the radiation is

$n=E/h$ν

$n=\frac{6.63}{6.6*10^{-34}*10^{14}}=10^{20}$