Question

If the Temperature of a black body is suddenly halved the radiating power will reduce approximately by,​

Answer 1

The radiating power of a black body is directly proportional to the fourth power of its absolute temperature according to the Stefan-Boltzmann law. Therefore, if the temperature of a black body is suddenly halved, the radiating power will reduce by a factor of approximately 2^4, which is 16.

So, the radiating power will reduce by approximately 16 times.