Describe an experiment to show that the solids expand on heating.

Solids expand on heating because

Why do solids expand on heating?

Describe an experiment to show that sound cannot propagate in vacuum.

Describe an experiment to show that cathode rays are made up of material particles.

Describe an experiment to show that sound waves can be reflected. What are the laws of reflection of sound waves.

The bell jar experiment shows that

Moll's experiment show

Describe a simple experiment to show that the prongs of a sound producing tuning fork are vibrating.