Question

Write two names of em wave. Give one similarity and one dissimilarity of them.

Answer 1

Two electromagnetic waves are :
(i) Radio waves
(ii) Light waves
Similarity : Both radio waves and light waves do not require any medium for their propagation.
Difference : Radio waves diffract prominently around buildings as the wavelength of radio waves is of the same order of
magnitude as the size of the building or other obstacle. The light waves do not diffract as the wavelength of light waves is
very small as compared to the size of building.