Question

Sound is a consequence of – (a) Vibration of any object vibrating in a medium (b) Vibration of any object vibrating in vacuum (c) Propagation of waves produced by a vibrating body (d) Both (a) & (c)

Answer 1

Answer:

the answer of a

Explanation:

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Answer 2

Natural Frequency. As has been previously mentioned in this unit, a sound wave is created as a result of a vibrating object. The vibrating object is the source of the disturbance that moves through the medium. ... When each of these objects vibrates, they tend to vibrate at a particular frequency or a set of frequencies.