Two spheres of the same material have radii 1 m and 4 m

Last updated: 6/5/2023

Two spheres of the same material have radii 1 m and 4 m temperatures 4000 K and 2000 K respectively Then the ratio of energy radiated per second by the first sphere as compared to that by the second is 1 4 1 3 1 1 2 2 1 4 1 4