Question

the range of temperature attained inside a box type solar cooker placed in the sun for 2-3 hours

plz z answer this question

Answer 1

After two hours in good, clear sunlight you should have a very high temperature in your solar cooker, if you have a well made solar cooker that is well insulated and has reflector panels that concentrate the maximum amount of sun possible into the oven. 
The temperature range can be between 150 F (66 c)to 400 F (204 c) if you have a well made solar cooker.

Answer 2

hello frnd,
the range can be 66 degree celcius to 204 degree celcius if you have weel mentained solar cooker
hope it will help