Question

Why solar heating devices are painted black name two such devices and limitations?

Answer 1

The solar heating device is painting black because black colour is the abbobser of heat in the solar heating device concave mirror is used

Answer 2

Solar heating devices are painted black they are painted black so that it can absorb more heat as black is a good absorber of heat thereby cooking occurs more faster.

The name of the devices are

Solar cookers

Solar cells

limitations

1)The initial cost of setting up these devices is very high

2) Food cannot be cooked during night

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