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 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 .