Question

The ratio of amplitude of two sound A and B is
1:4. If the loudness of sound A is doubled while
that of sound B is halved, then the ratio of new
amplitude of sound A and B is
(1) 1:4
(2) 4:1
(3) 1:2
(4) 1 : 16​

Answer 1

Answer:

1:3 ii the new ratio

Explanation:

double of 1 is 1 and 1/2 of 4 is 2