Physics, 07.03.2020 02:50 kathleenirwin
The intensity of a wave may be defined as the power transmitted per unit cross-sectional area at right angles to the direction of travel. For a point source of light, explain why the intensity I at a distance r away from the source obeys an inverse square law with distance, that is:
Answers: 2
The intensity of a wave may be defined as the power transmitted per unit cross-sectional area at rig...
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