On a winter morning at

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

Problem

0^{\circ}\text{C}

, an echo from a cliff is heard

0.90\,\text{s}

after a shout. If the observer remains at the same place, how long (in s) will the echo take on a summer afternoon when the air temperature is

25^{\circ}\text{C}

? (a)

0.90

(b)

1.04

(c)

0.86

(d)

0.94