Two beams of light,a red beam and a blue beam,have the same energy.The beam with the greater number of photons is the
A)red beam.
B)blue beam.
C)both the same

Question

Quizplus · Accepted Answer

The energy of a photon is inversely proportional to its wavelength. Red light has a longer wavelength and thus lower energy per photon compared to blue light. Therefore, for the same total energy, the red beam must have more photons than the blue beam.

Two Beams of Light,a Red Beam and a Blue Beam,have