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GATE 2026 AR — Architecture – Question 51

Climatology and Environmentally Responsive Design · Climatic factors and classification · 1 mark · Multiple choice

Albedo is the ratio of:

  1. Sensible heat to latent heat
  2. Reflected radiation to insolation
  3. Absolute humidity to saturation humidity
  4. Indoor to outdoor illumination

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Show answer and explanation

Correct answer: (B) Reflected radiation to insolation

Explanation

Albedo is the fraction of incoming solar radiation reflected by a surface: reflected shortwave radiation divided by incident solar radiation. Thus B. It is dimensionless, generally between 0 and 1; the other ratios describe different thermal, moisture or daylight quantities.

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