An echo repeats four syllables. Find the distance of the reflecting surface, if it takes one-fifth of a second to pronounce or hear one syllable distinctly. (Velocity 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 .

An echo repeats 5 syllables, each of which requires ⅕th of a second to pronounce and ½ second elapses between the time the last syllable is heard and the first syllable is echoed. Is echoed. Calculated the distance of the reflecting surface, the velocity of sound being 332 m//s .

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 ?

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