REFLECTION OF SOUND
A free sound wave travelling through air strikes a uniform, large, solid, plane surface and gets reflected in the same manner as a light ray. The following facts in connection with reflection of sound are to be noted:
- The analysis of reflection from curved surfaces may be derived by applying the laws of reflection of light.
- A concave surface leads to the concentration of reflected waves at certain points. Hence concave surfaces maybe provided to work as reflectors.
- A convex surface tends to spread the reflected waves. Hence, convex surfaces may be used with advantage to spread the sound throughout the room.
- The study of laws of reflection of sound helps in selecting the proper shape of the room with regard to distribution ...