Physics, asked by hindalakamlesh555, 8 months ago

. एक ध्वनि का अवशोषक ध्वनि के स्तर को 20 dB से कम करता है
ध्वनि में कितने गुणक से कमी होती है

Answers

Answered by rajkapoor6028

0

Explanation:

कार्बन चक्र पर टिप्पणी बताइए

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