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Reflection

10 PYQ across 4 exams · 2015–2026 — the complete chronological timeline of how UPSC has tested this idea, oldest to newest.

CDS 2015 → CAPF 2017 → NDA 2021 → CISF 2022
20151 PYQ
CDSQ9
A person standing 1 m in front of a plane mirror approaches the mirror by 40 cm. The new distance between the person and his image in the pl…
20171 PYQ
CAPFQ3
Statement I: Occasionally we see two rainbows together, the primary rainbow with another less intense secondary rainbow about 10 degrees awa…
20212 PYQs
NDAQ138
Reverberation is a phenomenon associated with a…
NDAQ65
The image we see in plane mirror is…
20221 PYQ
CISFQ57
The image formed by a plane mirror is :…
20233 PYQs
CDSQ3
A concave mirror of radius of curvature 50 cm is used to form an image of an object kept at a distance of 25 cm from the mirror on its princ…
NDAQ85
A rectangle ABCD is kept in front of a concave mirror of focal length f with its corners A and B being, respectively, at distances 2f and 3f…
NDAQ86
Shown in the figure are two plane mirrors XY and YZ (XY ⊥ YZ) joined at their edge. Also shown is a light ray falling on one of the mirrors …
20251 PYQ
CDSQ21
If your image appears to be erect, no matter how far you stand from a mirror, the mirror is likely to be :…
20261 PYQ
NDAQ68
A periscope uses two plane mirrors inclined at 45°. If the tube of the periscope is filled with a complete transparent liquid of refractive …
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Image FormationMirrorsImage formationSoundRefractive indexRefractionOptics
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