Question

why solar cooker is in concave shape??​

Answer 1

as concave converges the sun rays and makes the food cook faster^_________^

Answer 2

Answer:

The solar cooker is in a concave shape to converge all the light received over its surface at a single focal point.

Explanation:

• The infrared radiations or the light received converges at a focal point to produce more heat in a solar cooker.
• This is mainly to transfer a large amount of heat received all throughout the surface of the cooker to converge at a single point.
• The light that is collected at the focal point is bright and is full of thermal energy that is used for heating in the solar cooker.