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Topic Condensation
Asked 4 times across 3 UPSC exams over 4 years (2021–2025), peaking in 2023.
Key insights
- Most tested in NDA — 2 of 4 PYQs
- Most asked in 2023
- Recurs across 4 years (2021–2025)
How it travelled across exams
First appearance in each exam — the same idea, reframed.
NDA 2021 → GEO 2022 → CDS 2023
How the concept evolved
Rising — more than half its appearances (4 of 4) are since 2016.
Related concepts
Ideas UPSC tests alongside this one — keep exploring.
Sample questions
You've seen the pattern — here are a few of the actual PYQs.
NDA2025
Condensation of water vapour into water is influenced by which of the following factor/factors?
- Volume of air
- Humidity
- Temperature
- A 1 only
- B 1 and 2 only
- C 2 and 3 only
- D 1, 2 and 3 ✓
✓ Correct answer: (D)
Geography › Climatology
CDS2023
Consider the following statements on 'Fog'
- Fog is simply a cloud that forms close to the ground
- Radiation fog is associated with radiation cooling of the land at night
- Advection fog forms when moisture is blown over a cold surface and is chilled by contact
Which of the statements given above are correct ?
- A 1 and 2 only
- B 2 and 3 only
- C 1 and 3 only
- D 1, 2 and 3 ✓
✓ Correct answer: (D)
Geography › Climatology
GEO2022
Dew point temperature represents that
- A thin layer of air near the ground surface has become cold enough to condensate ✓
- B there is thorough mixing of air
- C evaporation has exceeded condensation
- D the night temperature is warm
✓ Correct answer: (A)
Geography › Climatology
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