Question

Bouncing back of sound into the same medium when it strikes any hard surface is : (a) Refraction (b) reflection
(c) either (a) or (b) (d) reverberation

Answer 1

Bouncing back of sound into the same medium when it strikes any hard surface is : Reflection

Answer 2

Explanation:

Bouncing back of sound into the same medium when it strikes any hard surface is : (a) Refraction (b) reflection

(c) either (a) or (b) (d) reverberation

Now answer is reflection