UPSC CDS Science Physics Questions Part 1

Statement (c) is not correct. In physics, electromagnetic radiation refers to the waves of the electromagnetic field, propagating (radiating) through space carrying electromagnetic radiant energy. It includes radio waves, microwaves, infrared, (visible) light, ultraviolet, X- , and gamma radiation. Classically, electromagnetic radiation consists of electromagnetic waves, which are synchronised oscillations of electric and magnetic fields that propagate at the speed of light through a vacuum.