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  9. Q76

JPSC 2023 · Question 76 of 199

Which of the following cannot travel in vacuum?

General Science

  1. ALight
  2. BHeat
  3. CSoundCorrect
  4. DElectromagnetic waves

Answer: C. Sound

Explanation

Sound requires a material medium and cannot travel through vacuum, unlike light, radiant heat and electromagnetic waves.

Source: JPSC Combined Civil Services (PT) 2023 (Advt 01/2024), GS Paper-I, Booklet Series-B; answers per official model answer key

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