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GS Paper IUPSC Prelims 2002
Climatology & Atmosphere
Question No. 57Interactive Test Mode
00:00
+2-0.66

Q57. Sun’s halo is produced by the refraction of light in :

Sun’s halo is produced by the refraction of light in :

Select the correct option below (or cross out options to eliminate)
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Official Answer Key & Detailed Solution

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Official UPSC Answer KeyUPSC Prelims 2002 • Geography

Correct Answer: Option (C) — ice crystals in Cirrus clouds

Concept & Option Breakdown

Standard Reference Verified

A solar halo (typically a 22° halo) is an optical atmospheric phenomenon caused by the refraction of sunlight through millions of randomly oriented hexagonal ice crystals suspended within thin, high-altitude cirrus or cirrostratus clouds.

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Question Specifications & Syllabus Mapping

Examination & YearUPSC Civil Services Preliminary Examination 2002 (Q57)
Paper & Marking SchemeGS Paper I • 2 Marks (-0.66 Negative for incorrect response)
Syllabus Subject & TopicGeography → Climatology & Atmosphere
Official Answer KeyOption (C) — ice crystals in Cirrus clouds

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Frequently Asked Questions — UPSC Prelims 2002 Q57

What is the official answer for UPSC Prelims 2002 GS Paper I Question 57 (Geography)?

The official UPSC answer key for this 2002 Geography (Climatology & Atmosphere) question is Option (C): "ice crystals in Cirrus clouds". Correct attempts carry 2 Marks with -0.66 Negative penalty for wrong answers.

Which UPSC Prelims syllabus topic does this 2002 question belong to?

This question belongs to GS Paper I under the subject "Geography" and micro-topic "Climatology & Atmosphere". You can explore all repeated questions from Climatology & Atmosphere in Acme AI's 3D Prelims PYQ Realm or practice 50 full-length and sectional tests in the APT Prelims Test Series.

How can I solve this Climatology & Atmosphere UPSC Prelims question using option elimination?

To solve Climatology & Atmosphere questions in UPSC Prelims, identify extreme modifiers, verify core NCERT conceptual definitions, and eliminate mutually contradictory statement pairs before locking your final option.

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