Two waves represented by following equations are travelling in same medium y1=5 sin 2π (75t – 0.25x) and y2=10 sin 2π (150t – 0.50x). The intensity ratio I1/I2 of the two waves is
Options
(a) 1 : 2
(b) 1 : 4
(c) 1 : 8
(d) 1 : 16
Correct Answer:
1 : 4
Explanation:
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View Comments (2)
A1=5
A2=10
I is directly proportional to A^2
I1/I2=25/100
1:4
It is 1/16....here frequencies are also different...so put the total intensity formula