2000 General Studies, all questions
UPSC Prelims 2000 · General Studies
Question 102: Science and 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
areflection and diffraction
breflection and transmission
cdiffraction and transmission
drefraction, diffraction and transmission
The published answer to this question looks wrong to us, so none is shown until it has been checked.
Source: UPSC, Civil Services (Preliminary) Examination 2000, General Studies. UPSC's own paper isn't online; the words are from a published compilation. The paper on upsc.gov.in.