MHT CET202619 April 2026Morning ShiftPhysicsThermal Properties of MatterActual
A black body is at temperature 827^ C . The rate at which it emits energy is proportional to
Options
- A(827)^4
- B(827)^2
- C(1100)^4
- D(1100)^2
Correct answer
C. (1100)^4
Step-by-step solution
According to the Stefan-Boltzmann law, the rate at which a black body emits energy is directly proportional to the fourth power of its absolute temperature. E T^4 The given temperature is t = 827^ C . Converting this to absolute temperature in Kelvin: T = 827 + 273 = 1100 K Therefore, the rate of energy emission is proportional to (1100)^4 . Answer: (1100)^4