You are a distance "d" away from a source emitting light waves of amplitude “A". If you move away to distance "4d", what amplitude of waves will you receive there?
You are a distance "d" away from a source emitting light waves of amplitude “A". If you move away to distance "4d", what amplitude of waves will you receive there?
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2-1: please help explain why C is correct
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if A is the amplitude of the wave, then the intensity I can be given as
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