Practicing Success
Practicing Success
CUET Preparation Today
The total radiant energy per unit area, normal to the direction of incidence, received at a distance R from the centre of a star of radius r, whose outer surface radiates as a black body at a temperature T K is given by : (Where σ is Stefan’s Constant) |
\(\frac{4 \pi \sigma r^2 T^4}{R^2}\) \(\frac{\sigma r^2 T^4}{R^2}\) \(\frac{\sigma r^2 T^4}{4 \pi R^2}\) \(\frac{\sigma r^4 T^4}{R^2}\) |
\(\frac{\sigma r^2 T^4}{R^2}\) |
