16. Which one among the following is not an electromagnetic wave? A.X-Ray B.R-Ray C.Cathode Ray D.Infrared Ray
Option C Solution: In physics, electromagnetic radiation (EMR) refers to the waves (or their quanta, photons) of the electromagnetic field, propagating (radiating) through space carrying electromagnetic radiant energy. It includes radio waves, microwaves, infrared, (visible) light, ultraviolet, X-ray, and gamma radiation.
