Q.

Two waves are represented byy1 = 5 sin2π(75t - 0.25x)  y2 = 10 sin2π(150t - 0.50x)The intensity ratio l1l2 of the two waves is

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a

1 : 2

b

1 : 4

c

1 : 8

d

1 : 16

answer is D.

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Detailed Solution

l1l2 = A12v12ρcA22v22ρc = 5102751502 = 116
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