If actual vapour pressure is 12 and saturation vapour pressure is 24, what is relative humidity (RH)?
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Answer and explanation
Correct answer: 50%
Relative humidity is calculated as RH = (actual vapour pressure ÷ saturation vapour pressure) × 100. Substituting the given values gives RH = (12 ÷ 24) × 100 = 0.5 × 100 = 50%. Thus option B is correct. The units cancel because both pressures are measured in the same unit.
Frequently asked questions
What is the correct answer to this question?
50%
Why is this the correct answer?
Relative humidity is calculated as RH = (actual vapour pressure ÷ saturation vapour pressure) × 100. Substituting the given values gives RH = (12 ÷ 24) × 100 = 0.5 × 100 = 50%. Thus option B is correct. The units cancel because both pressures are measured in the same unit.
Which subject and chapter does this question cover?
This is a Class 12 Geography question. Chapter: Water in the Atmosphere. Topic: Humidity, evaporation, and condensation.
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