Question
Question: Three separate segments of equal area A<sub>1</sub>, A<sub>2</sub> and A<sub>3</sub> are shown in th...
Three separate segments of equal area A1, A2 and A3 are shown in the energy distribution curve of a blackbody radiation. If n1, n2 and n3 are number of photons emitted per unit time corresponding to each area segment respectively then

A
n2> n1> n3
B
n3> n1> n2
C
n1 = n2 = n3
D
n1 = n2 = n3
Answer
n1 = n2 = n3
Explanation
Solution
Equal area means equal power output. A3 area pertains to highest wavelength range, thus photons with minimum range of frequency. Thus maximum number of photons are required from this segment to keep the power same.