What would be the effective mass of a photon, if the frequencies of radiation is 6 × 1014 Hz ?
Answer & explanation
Correct answer: option 1
For a Photon
$E = mc^2 = h\nu$
$\Rightarrow m = \frac{h\nu}{c^2} = \frac{6.62\times 10^{-34}\times 6\times 10^{14}}{9\times 10^{16}}= 4.4\times 10^{-36}kg$