Name the devices which converts sunlight into electricity.

What type of reflector is used in a box-type solar cooker?

What is the range of temperature which can be achieved in a box-type solarcooker in two to three hours?

How much solar energy will be received by 1 m² area in one hour if the solar constant be 1.4 kW/m²?

Fill in the following blanks with suitable words :

A solar cell converts …………………. energy into …………………. energy.