ध्वनि तीव्रता की डेसिबल मे – McqOptions

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1.	ध्वनि तीव्रता की डेसिबल में वह अधिकतम सीमा जिसके ऊपर व्यक्ति सुन नहीं सकता -
A.	50 डेसिबल
B.	95 डेसिबल
C.	85 डेसिबल
D.	70 डेसिबल
Answer» C. 85 डेसिबल

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