Question

If the radiation source has the duration of nano second nd the number of photons emittrd is 2.5 *10^15the energy of source is

Answer 1

Answer:

Explanation:

Number of Photons emitted , n = 2.5 x 1015

Duration of Source , T = 2 X 10-9 s

Energy of Source . E = nhv = nh/T = 8.3 X 10-10 J