Question

Compare the rate of emission of heat by a black body at 327 c with the rate of emission of heat of same body at 27 c

Answer 1

Answer:

nation:

Given Compare the rates of emission of heat by black body at 727°C and 227°C.If the black body is surrounded by enclosure (black) at 27 degree Celsius, what would be the ratio of their rates of loss of heat?

Temperature of first black body = 727 + 273 = 1000 K

Temperature of second black body = 227 + 273 500 k

Also temperature of surrounding = 27 + 273 = 300 k

Rate of loss of heat is directly proportional to the difference in temperature of the black body ans the surrounding.

So first body P = 1000 – 300 = 700

So second body P1 = 500 – 300 = 200

Therefore ratio will be 700 / 200 = 7/2

                                                 = 7 : 2

Hope it helps u !!