ధ్వని వేగం ఎందులో ఎక్కువ గ – McqOptions

MCQOPTIONS

1.	ధ్వని వేగం ఎందులో ఎక్కువ గా ఉంటుంది ?
A.	స్టీల్
B.	గాలి
C.	నీరు
D.	శూన్యం
Answer» B. గాలి

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