# IPC

Explain whether the photons emitted by a bright light bulb are more energetic than those emitted by a dim light bulb of the same color. how does the color of the light bulb determine the amount of energy of the electromagnetic waves?

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1. The brightness of the light source does not affect the average energy of the photons. That is determined by the color. More intense light sources emit more photons per second. Light sources that are more blue-to-violet in color (shorter in wavelength) have more energy per photon.

The amount of energy in the WAVES (as opposed to the photons) depends upon both the color of the light bulb and its brightness

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