Question

Match Column-1 with Column-2. In the table given below, certain EM waves are listed in Column-1 and their uses in Column-2 not necessarily in that order.

Choose the correct matching of waves and their uses from the options given below:

• A. (A)-(III), (B)-(II), (C)-(I), (D)-(IV)
• B. (A)-(I), (B)-(III), (C)-(II), (D)-(IV)
• C. (A)-(III), (B)-(IV), (C)-(I), (D)-(II)
• D. (A)-(II), (B)-(IV), (C)-(I), (D)-(III)

Answer 1

The Correct Option is C

To address this, we will match the electromagnetic (EM) waves in Column-1 with their respective applications in Column-2. The correct pairings are determined as follows:

Column-1 (EM Waves)	Column-2 (Uses)
(A) Radio waves	(III) Broadcasting
(B) Microwaves	(IV) Cooking
(C) Infrared	(I) Night vision
(D) X-rays	(II) Medical imaging

The rationale for each match is:

• (A) Radio waves are employed for broadcasting due to their capacity to transmit signals over extended distances without atmospheric absorption.
• (B) Microwaves facilitate cooking, notably in microwave ovens, by effectively energizing water molecules for rapid food heating.
• (C) Infrared radiation is utilized in night vision devices to detect thermal emissions from objects under low-light conditions.
• (D) X-rays are indispensable in medical imaging because they penetrate soft tissues while being absorbed by denser structures like bones, thereby generating clear contrast images.

Consequently, the accurate correspondence is: (A)-(III), (B)-(IV), (C)-(I), (D)-(II)