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NEST2020PhysicsGravitation

Assume that the mass density of the Sun is uniform and treat solar radiation as blackbody radiation. It's given that the surface temperature of the Sun is 6000 K and assume that the Sun continues giving energy at the same rate in future. If the source of Sun's radiated energy was its gravitational potential energy instead of the nuclear fusion then the Sun will cease to exist in a time of the order of

Options

  1. A10 years
  2. B10 million years
  3. C1 billion years
  4. D1000 years

Correct answer

B. 10 million years

Step-by-step solution

No solution available.

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