Conduct an experiment to prove that shutters in front of the house's windows keep the room temperature lower than curtains placed in the room. Explain why this is so. Answer the question.
We know and have already tested that heat radiation, including heat radiation reaching the Earth from the Sun and radiating from the ground, is absorbed by the objects on which they fall. We also know that these objects heat up as a result.
So: if you put blackout curtains in front of the windows, some of the light is reflected, but a lot is also absorbed. This means an increase in the temperature of the curtains, which in turn means that the curtains act as radiators that increase the temperature of the room.
If you place any kind of curtains outside, behind the windows, they will also warm up, but this heat will not reach the room. The convection that inevitably occurs around the curtains carries this heat up and away from the house. In this way, the room is not affected by additional heating.
