A 75-W light source consumes 75 W of electrical power. Assume all this energy goes into emitted

Question:

A 75-W light source consumes 75 W of electrical power. Assume all this energy goes into emitted light of wavelength 600nm.
(a) Calculate the frequency of the emitted light.
(b) How many photons per second does the source emit?
(c) Are the answers to parts (a) and (h) the same?!s the frequency of the light the same thing as the number of photons emitted per second? Explain.