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UPSC Combined Geo-Scientist

Chemist

  • 2 objective papers
  • 120 questions each
  • 2 h per paper
  • 100 + 300 marks

Prelims Paper I covers general studies.

UPSC Combined Geo-Scientist, Prelims · 2026 · Paper I, General Studies · Q114 of 120

Geo-Scientist Prelims 2026 General Studies Q114: Which one among the following is the primary reason of microwave…

QuestionPhysics / Electromagnetic waves

Which one among the following is the primary reason of microwave heating of water?

  1. (a) Microwaves ionize water molecules.
  2. (b) Water dipoles undergo rotational resonance at microwave frequencies.
  3. (c) Microwaves produce standing waves in solids and liquids.
  4. (d) Heating occurs due to induced currents only.

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