NEET Questions Solved

NEET - 2012

If the radius of a star is R and it acts as a black body, what would be the temperature of the star, in which the rate of energy production is Q?





       σ stands for Stefan's constant.

From Stefan' law,


So, the rate energy production



Temperature of star


Difficulty Level:

  • 8%
  • 14%
  • 20%
  • 60%