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GS Paper IUPSC Prelims 2001
Health & Medicine
Question No. 227Interactive Test Mode
00:00
+2-0.66

Q227. The mass of a body on earth is 100 kg (acceleration due to gravity, ge = 10 m/s2. If acceleration due to gravity on the moon is ge/6, then the mass of the body on the moon is:

The mass of a body on earth is 100 kg (acceleration due to gravity, ge = 10 m/s2. If acceleration due to gravity on the moon is ge/6, then the mass of the body on the moon is:

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 2001 • Science and Technology

Correct Answer: Option (C) — 100 kg

Concept & Option Breakdown

Standard Reference Verified

Mass is an intrinsic property measuring the quantity of matter in a body and remains invariant regardless of gravitational field or location. While the weight becomes one-sixth on the Moon ($W_m = m g_e / 6$), the mass remains unchanged at 100 kg.

Elimination Heuristic & Exam Approach

Classic trap: Mass remains constant everywhere; only weight changes with gravity.

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Question Specifications & Syllabus Mapping

Examination & YearUPSC Civil Services Preliminary Examination 2001 (Q227)
Paper & Marking SchemeGS Paper I • 2 Marks (-0.66 Negative for incorrect response)
Syllabus Subject & TopicScience and Technology → Health & Medicine
Official Answer KeyOption (C) — 100 kg

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Frequently Asked Questions — UPSC Prelims 2001 Q227

What is the official answer for UPSC Prelims 2001 GS Paper I Question 227 (Science and Technology)?

The official UPSC answer key for this 2001 Science and Technology (Health & Medicine) question is Option (C): "100 kg". Correct attempts carry 2 Marks with -0.66 Negative penalty for wrong answers.

Which UPSC Prelims syllabus topic does this 2001 question belong to?

This question belongs to GS Paper I under the subject "Science and Technology" and micro-topic "Health & Medicine". You can explore all repeated questions from Health & Medicine 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 Health & Medicine UPSC Prelims question using option elimination?

Classic trap: Mass remains constant everywhere; only weight changes with gravity.

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