1.

The intensity of sun light (in W // m^(2)) at the solar surface will be:

Answer»

<P>`5.6 xx 10^(6)`
`5.6 xx 10^(7)`
`4.2 xx 10^(6)`
`4.2 xx 10^(7)`

Solution :Intensity is given by,
`(P)/(A)=(3.9 xx 10^(26))/(4pi r^(2))=5.62 xx 10^(7) W // m^(2)`.


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