Question

The intensity of a sound is increased to 9 times.
The percentage change in its amplitude will be
(1) 200%
(2) 100%
(3) 300%
(4) 50%
DERIVE IT​

Answer 1

Explanation:

The intensity of a sound is increased to 9 times.

The percentage change in its amplitude will be

(3) 300%

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Answer 2

Answer:

I think the answer is 300 % . may it will help you.