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Grade: 12th pass 
        the intensity ratio of two  sound waves is 1:9 the ratio of their amplitude is
one year ago

Answers : (1)

Arun
19099 Points 
							
Dear student
 
Intensity proportional to a²
I1/ I2 = a²1/a²2
 
1/9 = (a1/a2)²
 
Hence
 
a1/a2 = 1/3
 
 
Regards
Arun (askIITians forum expert)
one year ago
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