ध्वनि निम्नलिखित में से कि – McqOptions

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1.	ध्वनि निम्नलिखित में से किस माध्यम में यात्रा नहीं कर सकती है -
A.	गैस
B.	निर्वात
C.	द्रव
D.	धातु
Answer» C. द्रव

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