Question

21.
The number of photons of wavelength 540 nm emitted per second by an electric bulb of
power 100 W is approximately (taking h= 6 x 10-34 J-s)
(A) 4x 1016
(B) 4 x 1010
(C) 3 x 1020
(D) 3 x 1018
​

Answer 1

Answer:

c)3×1020

please mark as brainlist answer please