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Ques. Comment Recommendation
 A car radiator cools mainly by convection. radiation (to
surroundings) / Good
emitter
Texture : Rough – Emits
radiation (to
surroundings) / Good
emitter
Area : Large – More
emission

(a)(ii) Roof: [any 2?]
Nature : Shiny – Reflects
radiation (to
surroundings)/ Poor
absorber
Colour : White – Reflects
radiation (to
surroundings)/ Poor
absorber
Texture : Smooth –
Reflects radiation (to
surroundings)/ Poor
absorber
Area : Small – Less
absorption

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