Question

Mention any two difference between a box- type cooker and one with spherical reflector.

Answer 1

Differences between a box-type solar cooker and the one having a spherical reflector:

	Box-type solar cooker	Solar cooker with spherical reflector
1	A plane mirror is used as a reflector in this type of solar cooker.	A parabolic reflector is used in this type of solar cooker.
2	It produces a lower temperature as compared to the solar cooker having a spherical reflector.	Very high temperatures can be obtained.