Sound travels through solid, liquid and gas. In which medium is its speed the minimum?

How is wave velocity related to wavelength and frequency?

Expand the term SONAR.

What is elastic wave?

What is the main difference between a mechanical wave and a nonmechanical wave?

Write two differences between a longitudinal and a transverse wave.

Draw the displacement-time graph for a wave created when a stone is thrown into a pond.

Define the amplitude of a wave. Show it graphically. What does the amplitude of a wave describe?

Show the wavelength of a wave with the help of a diagram.