Question

why is solar cooker box covered with plane glass plate?

Answer 1

Glass covers function to trap the heta radiations inside the box. Heat radiations once inside the box, will be absorbed by the content inside the box. The same radiations are reradiated in longer wavelengths, which fail to get refracted out of the glass cover.

Answer 2

Answer:

The box of a solar cooker is covered with covered with a glass plate because the glass traps the heat and does not allow to escape. So it creates a greenhouse effect. This helps to increase the temperature inside the box and the food is able to cook faster

HOPE IT HELPS!!

:)