Sound travels in air if

Question

MCQ (Single)Sound Propagation Through Different MediaNCERT Exemplar

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Explain why sound travels faster in water than in air. Include a brief explanation related to the medium's properties.

Most television sets these days can be operated through a REMOTE CONTROL. How do most 'remotes' communicate with TV sets?

Sound Propagation Through Different Media

Attempt either (I) with all sub parts or (II) with all sub parts from the following two questions-

Attempt either (I) with all sub parts or (II) with all sub parts from the following two questions-