The sun delivers about `1.4kW m^(-2)` of electromagnetic flux to the earth's surface.
Channel: Doubtnut
Date: 2020-07-26

The sun delivers about `1.4kW m^(-2)` of electromagnetic flux to the earth's surface. Calculate  A. the total power incident on a roof of dimensions `8mxx20`m.  B. the solar energy in joules incident on the roof in 1h.  C.the radiation pressure and force assuming the roof to be a perfect absorber.