Question
Physics Question on Electromagnetic waves
Match Electromagnetic waves listed in Column I with Production method/device in Column II.
The correctly matched combination is as in option :
A
(A) - (I), (B) - (II), (C) - (III), (D) - (IV)
B
(A) - (II), (B) - (III), (C) - (IV), (D) - (I)
C
(A) - (II), (B) - (I), (C) - (IV), (D) - (III)
D
(A) - (III), (B) - (IV), (C) - (I), (D) - (II)
Answer
(A) - (II), (B) - (III), (C) - (IV), (D) - (I)
Explanation
Solution
(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.