"A" cosine left parenthesis, StartFraction, 2 pi "u" Over 100 , EndFraction , right parenthesisAcos2πu100
left parenthesis, "B" cos left parenthesis, StartFraction, 2 pi "u" Over 100 , EndFraction minus StartFraction, "m" pi Over "n" , EndFraction minus StartFraction, "p" Over "q" , EndFraction pi , right parenthesis , right parenthesisBcos2πu100−mπn−pqπ
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To see the effect of one of the following polarizing devices on the light, select the integers p and q as directed.