Question

In a solar cooker the following arrangements are made. Write one function of each arrangement. (i) The box is made of insulating material such as plastic or wood. (ii) The inner walls of the box are painted black. (iii) The box is covered with a transparent glass sheet. (iv) A concave mirror is hinged at an angle at the top of the box.

Answer 1

Answer:

1) Plastic or wood is an insulators of heat.

2) Black is a good absorber of heat

3) Glass sheet is a good insulator, which reduces the heat loss

4) Concave mirror reflects all the radiation to a single point .