A sound wave consists of :
(a) A number of compression pulses one after the other
(b) A number of rarefaction pulses one after the other
(c) Compression and rarefaction pulses one after the other.
(d) A compression and rarefaction pulse separated by a distance equal to one wavelength.

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Solution

Option c, compression and rarefaction pulses one after the other.

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A sound wave consists of :(a) A number of compression pulses one after the other(b) A number of rarefaction pulses one after the other(c) Compression and rarefaction pulses one after the other.(d) A compression and rarefaction pulse separated by a distance equal to one wavelength.

Option c, compression and rarefaction pulses one after the other.

A sound wave consists of :
(a) A number of compression pulses one after the other
(b) A number of rarefaction pulses one after the other
(c) Compression and rarefaction pulses one after the other.
(d) A compression and rarefaction pulse separated by a distance equal to one wavelength.