Question

Match Electromagnetic waves listed in Column I with Production method/device in Column II.

The correctly matched combination is as in option :

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

Answer 1

The Correct Option is B

To solve the problem of matching electromagnetic waves to their production methods, we need to understand the characteristics and generation techniques of different electromagnetic waves:

1. Radio Waves: These are generated by oscillating circuits with a suitable frequency. They are often used in communication devices.

2. X-Rays: Produced by the process of fast-moving electrons striking a metal target. This generates electromagnetic radiation in the form of X-rays.

3. Gamma Rays: Emitted from the nuclei of radioactive atoms during nuclear reactions. They have high energy and are the product of nuclear processes.

4. Ultraviolet Rays: These can be produced using a mercury vapor lamp. They have higher energy than visible light and are often used in sterilization processes.

Electromagnetic Wave	Production Method/Device
(A) Radio Waves	(II) Oscillating Circuits
(B) X-Rays	(III) Bombarding of High Energy Electrons on a Metal Target
(C) Gamma Rays	(IV) Radioactive Nuclei
(D) Ultraviolet Rays	(I) Mercury Vapour Lamp

The correct answer is: (A) - (II), (B) - (III), (C) - (IV), (D) - (I)