Which of the following statements is wrong [NCERT 1976, 79]

1.	Which of the following statements is wrong [NCERT 1976, 79]
A.	Sound travels in straight line
B.	Sound is a form of energy
C.	30 cm/sec
D.	Sound travels faster in vacuum than in air
Answer» E.

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Which of the following statements is wrong [NCERT 1976, 79]

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