Reflection and Absorption of Sound

Which property of sound is made use of in designing sound proof chambers?

What do you mean by reflection of sound waves?

Reverberation can be decreased by using a material on the room's walls or ceiling that absorbs rather than reflects sound waves.

How can we reduce the multiple reflection of sound?

(i). Does sound follow the same law of reflection as light? Explain.
(ii). List two practical applications for sound wave reflection.
(iii). A stone is dropped from the top of a tower $500\mathrm{m}$ high into a pond of water at the base of the tower. When is the splash heard at the top? Given, (i).(i).$g=10{\mathrm{ms}}^{-2}$ and speed of sound is $340{\mathrm{ms}}^{-1}$.

Write a short note on reflection of sound.

The sound heard after reflection from a rigid surface is called echo.

What do you mean by reflection of sound waves ? State the laws of reflection.

State the laws of reflection of sound. Draw diagram of experimental set up used to verify them.

State two laws of reflection of sound.

For hearing the louder ticking sound heard by the ear, find the angle $x$ in the figure.

Write the definition of Echo.