वायु के गर्म होने पर उसका घनत्व क्या होता है?
What happens to the density of air when it is heated?
Explanation opens after your attempt
C. घटता हैIt decreases
Concept
Warm air expands, so its density decreases and it rises. Exam tip: understand this as the start of convection.
Why this answer is correct
The correct answer is C. घटता है / It decreases. Warm air expands, so its density decreases and it rises. Exam tip: understand this as the start of convection.
Exam Tip
गर्म हवा फैलती है इसलिए उसका घनत्व घटता है और वह ऊपर उठती है। परीक्षा में इसे संवहन की शुरुआत समझें।
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