with every increase of 1Co.
and
1. The speed of sound in dry air at 0°C is around
The speed of sound in air increases by
3. Sound exhibits the following properties:
4. The turning back of the wave as it hits the barrier is called
5. The reflected sound is known as
6.
refers to the multiple reflections or echoes in a certain place.
7.
An application of sound reflection used by scientists to map seafloor and to
determine the depth of the ocean or sea is
8. The
of sound involves a change in the direction of waves as they
pass from one medium to another.
in cooler air than in warmer air.
9. Sound waves travel​​