Star A has radius r surface temperature T while star B has radius 4 r and surface temperature T /2. The ratio of the power of two starts, P A : P B is

The radiation emitted by a star A is 1000 times that of the sun. If the surface temperature of the sun and star A are 6000 K and 2000 K respectively. The ratio of the radii of the star A and the sun is:

The radiation emitted by a star A is 10000 times that of the sun. If the surface temperature of the sun and star A are 6000 K and 2000 K respectively. The ratio of the radii of the star A and the sun is:

The radiation emitted by a star A is 1000 times that of the sun. If the surface temperature of the sun and star A are 6000 K and 2000 K respectively. The ratio of the radii of the star A and the sun is:

The radiation emitted by a star A is 10,000 times that of the sun. If the surface temperatures of the sun and the star A are 8000 K and 2000 K respectively. The ratio of the radii of the star A and the sun is

The radiation emitted by a star A is 10,000 times that of the sun. If the surface temperatures of the sun and the star A are 8000 K and 2000 K respectively. The ratio of the radii of the star A and the sun is

The radiation emitted by a star A is 10,000 times that of the sun. If the surface temperatures of the sun and the star A are 6000 K and 2000 K respectively, the ratio of the radii of the star A and the sun is

The radiation emitted by a star A is 10,000 times that of the sun. If the surface temperatures of the sun and the star A are 6000 K and 2000 K respectively, the ratio of the radii of the star A and the sun is

The radiation emitted by a star A is 10,000 times that of the sun. If the surface temperatures of the sun and the star A are 6000 K and 2000 K respectively, the ratio of the radii of the star A and the sun is

The radiation emitted by a star A is 10,000 times that of the Sun. If the surface temperature of the Sun and the star are 6000 K and 2000 K respectively, the ratio of the radius of star A and the Sun is . . . .. . . .