The intensity of solar radiation just outside the earth's atmosphere is measured to be 1.4 kW/m². If the radius of the sun 7×10⁸m, while the earth-sun distance is 150×10⁶km, then find
i. the intensity of solar radiation at the surface of sun,
ii. the temperature at the surface of the sun assuming it to be a black body,
iii. the most probable wavelength in solar radiation.
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