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Today I put this question on a Waves test.
4. In color theory red light (4.8 x 1014 HZ) and green light (5.7 x 1014
Hz) combine to yield yellow. A student proposed that this is an example of
the beats phenomenon.
a. What would be the beat frequency of these colors? Would this be an
observable frequency?
b. Is the student justified in his hypothesis?