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Electromagnetic Waves question

2022 · 27 Jun · Shift 1 · Q53
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  5. /2022 · 27 Jun · Shift 1 · Q53

Electromagnetic Waves question

2022 · 27 Jun · Shift 1 · Q53

JEE MainPhysicsElectromagnetic WavesMCQ+4 / −1

Match List-I with List-II :

List - I List - II
(a) Ultraviolet rays (i) Study crystal structure
(b) Microwaves (ii) Greenhouse effect
(c) Infrared rays (iii) Sterilizing surgical instrument
(d) X-rays (iv) Radar system

Choose the correct answer from the options given below :

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

Correct answer: A

  1. We match each electromagnetic wave with its common application.

  2. Ultraviolet rays:

    • UV rays are used for sterilization because they kill bacteria and microorganisms.
    • So, (a)→(iii)(a) \to (iii)(a)→(iii).

  3. Microwaves:

    • Microwaves are used in radar systems.
    • So, (b)→(iv)(b) \to (iv)(b)→(iv).

  4. Infrared rays:

    • Infrared radiation is associated with heat and plays an important role in the greenhouse effect.
    • So, (c)→(ii)(c) \to (ii)(c)→(ii).

  5. X-rays:

    • X-rays are used to study crystal structure through X-ray diffraction.
    • So, (d)→(i)(d) \to (i)(d)→(i).

  6. Therefore, the correct matching is:

(a)−(iii),(b)−(iv),(c)−(ii),(d)−(i)(a)-(iii),\quad (b)-(iv),\quad (c)-(ii),\quad (d)-(i)(a)−(iii),(b)−(iv),(c)−(ii),(d)−(i)
  1. This corresponds to Option A.
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