Question

Professor cv raman surprised s student by suspending freely a tiny light ball in a transparent vaccum chamber by snning a laser beam on it. Wch property of em waves was he exbiting and give one more example

Answer 1

em wave does not need any medium for its propagation

1) em wave travels with a speed of light

Answer 2

Hey !

The properties of electromagnetic waves are similar to other waves as it carries both energy and momentum due to which it exerts radiation pressure. A tiny ball can be suspended freely in a transparent vacuum chamber by shinning a laser beam on it as electromagnetic waves exerts radiation pressure.

        Also, according to him, the tails of the comets are due to radiation pressure.

GOOD LUCK !!