An auditorium is maintained at

PHYSICS · Single correct · CBSE · Physics · Sound · Sound

Problem

30^{\circ}\text{C}

. Taking the speed of sound to vary with temperature as

v = 331 + 0.6T\,\text{m}\,\text{s}^{-1}

(where

T

is in

^{\circ}\text{C}

), what is the largest allowed separation between any two parallel walls if echoes are to be avoided? (a)

34.9\,\text{m}

(b)

17.4\,\text{m}

(c)

1.74\,\text{m}

(d)

16.6\,\text{m}