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JEE Main202124 Feb 2021Evening ShiftPhysicsElectromagnetic WavesActual

Match List - I with List - II. List-I List-II (a) Source of microwave frequency (i) Radioactive decay of nucleus (b) Source of infrared frequency (ii) Magnetron (c) Source of Gamma Rays (iii) Inner shell electrons (d) Source of X -rays (iv) Vibration of atoms and molecules (v) LASER (vi) RC circuit Choose the correct answer from the options given below:

Options

  1. A(a)-(ii), (b)-(iv), (c)-(vi), (d)-(iii)
  2. B(a)-(vi), (b)-(iv), (c)-(i), (d)-(v)
  3. C(a)-(vi), (b)-(v), (c)-(i), (d)-(iv)
  4. D(a)-(ii), (b)-(iv), (c)-(i), (d)-(iii)

Correct answer

D. (a)-(ii), (b)-(iv), (c)-(i), (d)-(iii)

Step-by-step solution

(a) Source of microwave frequency is magnetron. (b) Source of infrared frequency is vibration of atoms and molecules. (c) Source of Gamma rays is radioactive decay of nucleus (d) Source of X-rays inner shell electron transition.

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