Q.

If the ratio of amplitude of wave is 2 : 1, then the ratio of maximum and minimum intensity is

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a

9 : 1

b

1 : 9

c

4 : 1

d

1 : 4

answer is A.

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Detailed Solution

ImaxImin=a1a2+1a1a2−12=2+12−12=9/1
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