What type of surface is needed for the reflection of sound waves?

A- Smooth surface only

B- Smooth and polished surfaces

C-Hard surfaces only

D-Polished and rough surface

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Solution

b) Polished and smooth surface is the right option.

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Similar questions

Mark the correct statement:

I) Directions in which the sound is incident and is reflected make equal angles with the normal to the reflecting surface

II) Reflection of sound occurs from a polished surface

III) Reflection of sound occurs from a rough surface

Why is the surface of a slide polished to make it smooth?

What type of reflection of light takes place from :

(a) a rough surface?

(b) a smooth surface?

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