Q. Which of the following is a good reflector of heat radiation?

निम्नलिखित में से कौन ऊष्मा विकिरण का अच्छा परावर्तक है?

A
White paint
सफेद पेंट
B
Black paint
काला रंग
C
Glass
काँच
D
Copper
ताँबा

Explanation

White and shiny surfaces are good reflectors of radiation. They reflect most of the heat radiation falling on them, which is why buildings in hot climates are often painted white to stay cooler.

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