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The sound level at a point 5-0 m away fr...

The sound level at a point 5-0 m away from a point source is 40 dB. What will be the level at a point 50 m away from the source ?

A

26 dB

B

16dB

C

23dB

D

32dB

Text Solution

Verified by Experts

The correct Answer is:
B
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