Fundamentholfundamenthol
JEE Main2026Jan 24, Shift 1Physics
Q.

Match the List-I with List-II

Choose the correct answer from the options given below:

  1. A

    A-II, B-IV, C-III, D-I

  2. B

    A-IV, B-III, C-I, D-II

  3. C

    A-IV, B-I, C-II, D-III

  4. D

    A-IV, B-II, C-I, D-III

Solution

Matching each region of the EM spectrum to its production mechanism:

A. Radio waves are emitted by oscillating/accelerating electrons in an antenna → IV.

B. Microwaves are generated in devices like the magnetron and klystron valves → I.

C. Infrared radiation arises from changes in the vibrational (and rotational) modes of molecules → II.

D. X-rays are emitted when inner-shell electrons drop from higher to lower energy levels (characteristic X-rays) → III.

A-IV, B-I, C-II, D-III.

← Back to full paper

Practice more Physics

Concept-wise practice with instant solutions on Fundamenthol.

Start practicing →