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Subject :NSO    Class : Class 8
Loudness of sound increases with the A. Amplitude of vibrating body. B. Increase in surface area of vibrating body. C. Decrease in frequency of vibrating body. D. Increase in distance from the source of sound.

Ans 1:

from ,
Class :
The ans is A,B

Ans 2:

from ,
Class :
Hi friend. The ans is (A) amplitude of vibrating body. HOPE THIS HELPS!!!!

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