नीचे दिए चार माध्यमों में � – McqOptions

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1.	नीचे दिए चार माध्यमों में उस माध्यम को पहचानिए, जिससे होकर ध्वनि तीव्रतम गति से यात्रा करती है?
A.	लकड़ी
B.	ईट
C.	जल
D.	वायु
Answer» C. जल

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