Assuming the sun to have a spherical outer surface of radius r, radiating like a black body at temperature t o C, the power received by a unit surface, (normal to the incident rays) at a distance R from the centre of the sun is where $$\sigma $$ is the Stefan's constant.

$${{{r^2}\sigma {{\left( {t + 273} \right)}^4}} \over {{R^2}}}$$

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NEET Newtons Law Of Cooling Questions with Answers and Solutions

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Two identical bodies are made of a material for which the heat capacity increases with temperature. One of these is at 100<sup>o</sup>C, while the other one is at 0<sup>o</sup>C. If the two bodies are brought into contact, then, assuming no heat loss, the final common temperature is

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NEET Newtons Law Of Cooling practice

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NEET Newtons Law Of Cooling practice FAQ

Prepare together, not alone

NEET Newtons Law Of Cooling practice

What visitors can use on this page

NEET Newtons Law Of Cooling practice FAQ