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Person

Eratosthenes

Asked 2 times in CDS over 5 years (2019–2024), peaking in 2019.
2
PYQs
1
Exams
2
Years active
2019–2024
Span
2019
Peak
2/2
Answers
📅 Full chronological timeline →

Key insights

  • Most tested in CDS — 2 of 2 PYQs
  • Most asked in 2019
  • Recurs across 2 years (2019–2024)

Across exams

CDS · 2

How the concept evolved

119
124
Rising — more than half its appearances (2 of 2) are since 2016.

Sample questions

You've seen the pattern — here are a few of the actual PYQs.
CDS2024
Eratosthenes, a Greek philosopher measured the Earth's circumference based on the angle of Sun rays at two different points. Which cities were they ?
  1. A Alexandria and Syene ✓
  2. B Syene and Troy
  3. C Alexandria and Troy
  4. D Alexandria and Thebes
✓ Correct answer: (A)
Geography › Maps & Location
CDS2019
Which Greek philosopher coined the term "Geography" in the 3rd century B.C.E. ?
  1. A Euclid
  2. B Plato
  3. C Eratosthenes ✓
  4. D Clio
✓ Correct answer: (C)
Geography › World Regional Geography

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