4.
The electromagnetic waves also known as 'heat waves' are-
5.
The electromagnetic waves used in radar systems are-
6.
______ was the first to demonstrate the existence of electromagnetic waves.
7.
The ratio of the magnitudes of the electric field and magnetic field of a plane electromagnetic wave is-
8.
The electromagnetic radiation used in food processing sterilizing agent is-
9.
An electromagnetic wave is produced by a charge-