UPSC via PYQs
UPSC Prelims 2000Question 100Science & Technology

When a CD (Compact Disc used in audio and video systems) is seen in sunlight, rainbow like colours are seen. This can be explained on the basis of the phenomenon of

Options

  1. (a)reflection and diffraction
  2. (b)reflection and transmission
  3. (c)diffraction and transmission
  4. (d)refraction, diffraction and transmission

The full breakdown is part of the paid archive

This question's answer, explanation and links to every related question across 48 years (1979–2026) are inside the app. The two most recent years are free to read in full — no account needed.

See what's inside →

Related questions the exam has asked

Independent UPSC previous-year-questions study tool — not affiliated with or endorsed by the UPSC. Question text is reproduced from publicly released UPSC examination papers.
UPSCviaPYQs · Privacy · Terms