Question

why aluminium sheet kept in sun i.s. outside becomes hot?​

Answer 1

Answer:

So why aluminum instead? Because the conduction of heat through the glass is minor compared to the sun's heat radiating through the glass at nearly 1000W/m^2 of projected surface area. And aluminum, with an emmissivity of something like 4%, is excellent at reflecting radiant heat rather than absorb it.

Answer 2

Answer:

hlo..

Explanation:

So why aluminum instead? Because the conduction of heat through the glass is minor compared to the sun's heat radiating through the glass at nearly 1000W/m^2 of projected surface area. And aluminum, with an emmissivity of something like 4%, is excellent at reflecting radiant heat rather than absorb it.