Answer to Question #88885 in Physics for Murari

Question

We use black sunshades in our cars on our windows to block light but I want to ask that how do those shades work
And when the shades are black how they are preventing light and heat as they are black in colour they would absorb all the light and convert into heat and heat will be given off inside the car then how it would be useful to use black shields

Answer 1

The black shades absorb most of the light energy and convert it into heat.

This heat transferred by radiation from the surface of the car.