Question

A student has set up a solar cooker in a box by using a black painted aluminum sheet, a black cooking vessel, some glass wool and a mirror. what is the role of each item used in the solar cooker?

Answer 1

The role of each item used in solar cooker is given as below:
(i) Black painted aluminium sheet and black cooking vessel absorbs heat radiation.
(ii) Glass wool is a bad conductor of heat which prevents the loss of heat.
(iii) Glass sheet traps the heat radiation in the box.
(iv) Mirror plate reflects the heat radiation on to the glass sheet.

Answer 2

black painted aluminium sheet and black cooking vessel is a good conductor of heat because black conduct heat.