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THE RATE AT WHICH RADIANT ENERGY REACHES THE EARTH'S SURFACE FROM SUN IS ABOUT 1.4 kW/m^2. The distance from earth to sun is approximately and the radius of Sun is about . 1)What is the rate of radiation of energy per unit area from Sun's surface??????? 2)If the sun radiates as an ideal black body what is temperature of its surface???????


THE RATE AT WHICH RADIANT ENERGY REACHES THE EARTH'S SURFACE FROM SUN IS ABOUT 1.4 kW/m^2.



The distance from earth to sun is approximately  and the radius of Sun is about   .


1)What is the rate of radiation of energy per unit area from Sun's surface???????



2)If the sun radiates as an ideal black body what is temperature of its surface???????


Grade:upto college level

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