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  • A sound wave is passing through the air column in the form of compression and rarefaction. In consecutive compressions and rarefactions, a) density remains constant

A sound wave is passing through the air column in the form of compression and rarefaction. In consecutive compressions and rarefactions,

a) density remains constant

b) Boyle’s law is obeyed

c) bulk modulus of air oscillates

d) there is no transfer of heat

Answers (1)

The answer is the option (d) In consecutive compressions and rarefactions, the density of medium particles is maximum and minimum, respectively. Due to the rapid change in density temperature rises while the bulk modulus remains constant. The time of compressions and rarefactions is very small, so heat does not transfer.

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