The following table presents the part of the electromagnetic spectrum and their corresponding major applications. Part of the electromagnetic spectrum Applications P. Microwave I. For purifying the water Q. UV rays II. For warming the food R. Gamma rays III. For AM and FM communication systems S. Radio wave IV. For treating the Cancer cells The correct option is :
D. P-II, Q-I, R-IV, S-III
Microwaves are used in microwave ovens for warming food, so P matches with II. Ultraviolet (UV) rays are used in water purifiers to kill bacteria and purify water, so Q matches with I. Gamma rays are highly energetic and are used in radiotherapy to destroy cancer cells, so R matches with IV. Radio waves are used in AM and FM radio communication systems, so S matches with III. The correct matching is P-II, Q-I, R-IV, S-III. Answer: P-II, Q-I, R-IV, S-III
Related: Physics — Electromagnetic Waves · All PYQ Banks