What is the main reason double-paned glass windows keep a house warm in winter?

Type: MCQ • Marks: 1

A. The trapped air layer acts as a heat insulator

B. Glass is a super-conductor

C. Double glass doubles solar radiation

D. Air between panes generates heat

Explanation

Air trapped between two glass panes is a poor conductor of heat, reducing conductive and convective heat loss.

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Class 7th Curiosity

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