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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 · 2022 · Paper I, General Studies · Q88 of 120

Geo-Scientist Prelims 2022 General Studies Q88: On a very hot day, we often see shimmering wavy lines near the…

QuestionOptics / atmospheric refraction

On a very hot day, we often see shimmering wavy lines near the ground. It is due to

  1. (a) dispersion of light
  2. (b) refraction of light
  3. (c) reflection of light
  4. (d) total internal reflection of light

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