Heat Transfer Questions!?

I need some help in answering these questions. Please help as i don’t really understand it !

1. Why does a matt surface in sunshine get hotter than a shiny surface?

2. What type of surface is better for a flat roof – a matt dark surface ir a smooth shiny surface? Explain your answer

3. A solar heating panel is used to heat water. Why is the top surface painted matt black?

4. Why is a care radiator painted matt black?

Please help, an answer to any of these questions would be great, however i do need answers to all. Thank you so much! =D x

Top 1 Answers

A few days ago

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