ध्वनि की तीव्रता मापने वाल – McqOptions

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1.	ध्वनि की तीव्रता मापने वाला यंत्र है -
A.	ऑडियोमीटर
B.	ऑडियोफोन
C.	एनीमोमीटर
D.	क्रोनोमीटर
Answer» B. ऑडियोफोन

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