Home
Class 12
PHYSICS
If the intensity increased by a factor o...

If the intensity increased by a factor of 20, byhow may decibels is the sound level increased?

A

18

B

13

C

9

D

7

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Similar Questions

Explore conceptually related problems

If the intensity of sound is increased by a factor of 30, by how many decibels in the sound level increased :-

If the intensity of sound increased by a factor of 20 then the sound level increases in decibels by the

If the intensity of sound is doubled, by how many decibels does the sound level increase ?

The length of a rectangle increased by a factor of 2, and at the same time its area increased by a factor of 6. {:("Quantity A","Quantity B"),("The factor by which the width",3),("of the rectangle increased",):}

The sound level at a point is increased by 30 dB. What is factor is the pressure amplitude increased?

Assertion : Sound level increases linearly with intensity of sound. Reason : If intensity of sound is doubled, sound level increases approximatel 3 dB .

Assertion : Sound level increases linearly with intensity of sound. Reason : If intensity of sound is doubled, sound level increases approximatel 3 dB .

If the sound level in a room is increased from 50 dB to 60 dB, by what factor is the pressure amplitude increased ?

The current sensitivity of a moving coil galvanometer increases by 20% when its resistance is increased by a factor 2. Calculate by what factor does the voltage sensitivity change?