When a sound is reflected from a distant object, an echo is produced. Let the distance between the reflecting surface and the source of sound production remain the same. Do you hear echo sound on a hotter day ?

When sound is reflected from a distant object, an echo is produced. Let the distance between the reflecting surface and the source of sound remain the same. Do you hear an echo sound on a hotter day? Justify your answer.

An echo is heard when minimum distance of the reflecting surface is –

the minimum distance between the reflecting surface and source for listening the eco of sound is ( take speed of sound 340 m/s )

the minimum distance between the reflecting surface and source for listening the eco of sound is ( take speed of sound 340 m/s )

An echo is returned in 3 s . What is the distance of the reflecting surface from the source, given that the speed of sound is 342 m//s .