Solar cooker takes more time as compared to the LPG to boil potato or rice, yet Kunal uses solar cooker for such type of cooking.i) Why does Kunal use solar cooker instead of LPG?, Give reasons for your answer. ii) Name the phenomenon which is responsible for obtaining high temperature in solar cooker.

Solar cooker takes more time as compared to the LPG to boil potato or

1.	Solar cooker takes more time as compared to the LPG to boil potato or rice, yet Kunal uses solar cooker for such type of cooking.i) Why does Kunal use solar cooker instead of LPG?, Give reasons for your answer. ii) Name the phenomenon which is responsible for obtaining high temperature in solar cooker.
Answer» Solution :a) i) There are no energy losses while cooking on the solar cooker as the food gets cooked in a controlled enivironment, whereas cooking on the LPG leads to maximum percentage of energy loss. ii) Temperature controlled cooking retains the NUTRIENT value of the food III) Using the solar cooker LPG can be served which result in reduction of the emisssion of `CO_2` . iv) It saves a lot of PRECIOUS time which is normally consumed for cooking PURPOSE B) Green house effect