By what factor must the sound intensity be increased to increase the sound intensity level by 12.2 dB

the factor when the intensity of the sound increased the level by 12.2db is 16.60 times

Explanation:

The computation of the factor when the intensity of the sound increased the level by 12.2db

As we know that

10 increased its level by 10 dB

Here we used only 10dB as we are determining for 12.2dB

So

The factor should be

= 10^1.22

= 16.60 times

hence the factor when the intensity of the sound increased the level by 12.2db is 16.60 times

the correct choice is a .

do not post any more test or exam questions on

real, smaller and upside-down.   so the answer should be b.