Question

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24. The density of air at some point in longitudinal sound wave is minimum at an instant.
The pressure of air at that point is
a) Minimum b) Maximum c) Equal to pressure d) None
25 Intestine absorbs the digested food materials What tune of​

Answer 1

Answer:

The pressure of air at that point where it is minimum, is in rarefraction of the longitudinal wave.

The pressure of air at that point where it is maximum, is compression of the longitudinal wave.

And similarly same of other two bits