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

(A) Microwaves are produced by a magnetron, making (II) correct. 

(B) Infrared waves are produced by the vibration of atoms/molecules, making (III) correct. 

(C) X-rays are produced by bombarding a large atomic number metal target with fast-moving electrons, making (IV) correct. 

(D) Radio waves are produced by an LC oscillator, making (I) correct.