Asked by Dallas

If a beam of red light and a beam of blue light have exactly the same energy, which beam contains the greater number of photons?

Answers

Answered by DrBob222
E = hc/lambda where both h and c are constants and lambda is the wavelength. Red light is about 700 nm wavelength and blue light is about 450 nm ( or close to that). That formula will give you the energy of one photon. You can infer from that which beam has the greater number of photons.
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