Question

Write two properties common to all the electromagnetic radiations

Answer 1

Every form of electromagnetic radiation, including visible light, oscillates in a periodic fashion with peaks and valleys, and displaying a characteristic amplitude, wavelength, and frequency that defines the direction, energy, and intensity of the radiation.
I hope it's helps u alot plZ marks as brilliant answer.

Answer 2

He'll friends it is your answer below

Answer: Two properties common to all the electromagnetic radiation are:

(i) Electromagnetic radiation can travel through empty space

(ii) Electromagnetic radiation are not deflected by electric radiation.

Hope it's correct