निम्नलिखित में से किसमें स – McqOptions

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1.	निम्नलिखित में से किसमें से ध्वनि की गति सबसे तेज होती है -
A.	निर्वात
B.	लोहा
C.	पानी
D.	वायु
Answer» C. पानी

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