Physics
Heat
Easy
Question
The radiation emitted by a star A is 1000 times that of the sun. If the surface temperatures 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:
- 300:1
- 600:1
- 900:1
- 1200:1
The correct answer is: 900:1
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