Arrange an experiment to demonstrate the formation of longitudinal wave.

Define longitudinal wave.

Design an experiment to demonstrate hydro tropism.

Name the main longitudinal biomes.

Name two different types of waves. Give an experiment to explain the formation of transverse waves.

What do you understand by polarisation of light ?Describe an experiment to demonstrate transverse nature of light.

Name the scientist, who first: Experimentally demonstrated the existence of electromagnetic waves.