Question

Need or Purpose of the topic - To study about solar light , solar water heater and solar cooker​

Answer 1

Explanation:

solar light → It use the solar cells to recharge it's battery. Solar light mainly used where facility of electricity is not available. 2) solar water → water is heated with the heat of sun. In this system water passses with a long black pipe And, a concave mirror is focused at that point. to give more heat.

I hope it helpful

plz make my answer brain list answer