Question

The time period of a sound wave travelling in a
medium is T. At a given instant (t =0) a particular
region in the medium has minimum density. The
density of this region will be minimum again at​

Answer 1

Answer:

hello

Explanation:

The correct option is a

Its a low or minimum density region  so it is rarefaction.

so from t=0, next rarefaction will be produced at

t=T/2+T/2=T

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