Question

a) Write the name of a device used to cook food using solar energy.
b) What are the advantages and disadvantages of this device?

Answer 1

a) Solar cooker is used to cook food using solar energy.

b) Advantages:

i. They have no moving parts.

ii. They require less maintenance.

iii. They work well without any requirement of a focusing device such as a lens or mirror.

iv. They can be set up in remote places.

Disadvantages:

i. Although silicon is abundant in nature, special grade silicon required to make solar cells is sparsely available.

ii. Manufacturing of solar panels is very costly. Also, the silver used for inter connection of cells adds to the total cost.