Question

the ratio of amplitudes of three sound waves is 1:4:9. The ratio of their loudness will be

(1) 1:16:81
(2) 1:4:9
(3) 1:1:1
(4) 1:2:3​

Answer 1

Option 1 is correct because Loudness is directly proportional to the square of the amplitude.

Answer 2

Answer:

(I) is correct

Explanation:

loudness is directly proportional to the square of amplitude.