Question

The repetition of sound after reflection from a distant object, after original sound from a given source dies, is called ______.

विकल्प

• reflection of sound

• resonance of sound

• echo

• reverberations

Answer 1

The repetition of sound after reflection from a distant object, after original sound from a given source dies, is called echo.

Explanation:

An echo is a distinct repetition of sound heard after reflection from a distant object, once the original sound has died away. Reverberation is a continuous rolling sound caused by repeated reflections.