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Electromagnetic Waves question

2023 · 31 Jan · Shift 2 · Q50
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  5. /2023 · 31 Jan · Shift 2 · Q50

Electromagnetic Waves question

2023 · 31 Jan · Shift 2 · Q50

JEE MainPhysicsElectromagnetic WavesMCQ+4 / −1
Match List I with List II

LIST I LIST II
A. Microwaves I. Physiotherapy
B. UV rays II. Treatment of cancer
C. Infra-red light III. Lasik eye surgery
D. X-ray IV. Aircraft navigation

Choose the correct answer from the options given below:
  1. A
    A - IV, B - III, C - I, D - II
  2. B
    A - II, B - IV, C - III, D - I
  3. C
    A - III, B - II, C - I, D - IV
  4. D
    A - IV, B - I, C - II, D - III
View written solutionFree

Correct answer: A

  1. Match each electromagnetic wave with its common application

    • A. Microwaves
      Microwaves are used in radar systems, which are important in aircraft navigation.
      So, A →\to→ IV.

    • B. UV rays
      Ultraviolet rays are used in LASIK eye surgery (excimer laser uses UV radiation).
      So, B →\to→ III.

    • C. Infra-red light
      Infrared radiation is used in physiotherapy because of its heating effect.
      So, C →\to→ I.

    • D. X-ray
      X-rays are used in treatment of cancer (radiotherapy).
      So, D →\to→ II.

  2. Final matching

    A−IV,B−III,C−I,D−IIA - IV, \quad B - III, \quad C - I, \quad D - IIA−IV,B−III,C−I,D−II

  3. Compare with options

    This corresponds to Option A.

  4. Comparison with stored correct answer

    Stored correct answer = A
    Derived answer = A
    Hence, they agree.

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