A black body emits

Assertion : Coefficient of absorption of radiation of an ideal black body is 1 . Reason : An ideal black body emits radiation of all wavelengths.

A black body emit heat at the rate of 20 W , when its tempertaure is 227^(@)C Another black body emits heat at the rate of 15 W , when its temperature is 227^(@)C . Compare the area of the surface of the two bodies, if the surrounding is at NTP

A black body emit heat at the rate of 20 W , when its tempertaure is 227^(@)C Another black body emits heat at the rate of 15 W , when its temperature is 227^(@)C . Compare the area of the surface of the two bodies, if the surrounding is at NTP

A perfectly black body emits radiation at temperature T_(1) K. If is to radiate at 16 times this power, its temperature T_(2) K should be

A hot black body emits the enegy at the rate of 16 Jm^-2s^-1 and its most intense radiation corresponds to 20000 Å . When the temprerature of this body is further increased and its most intense radiation corresponds to 10000Å , then find the value of energy radiated in Jm^-2s^-1 .

A hot black body emits the enegy at the rate of 16 Jm^-2s^-1 and its most intense radiation corresponds to 20000 Å . When the temprerature of this body is further increased and its most intense radiation corresponds to 10000Å , then find the value of energy radiated in Jm^-2s^-1 .

A hot black body emits the enegy at the rate of 16 Jm^-2s^-1 and its most intense radiation corresponds to 20000 Å . When the temprerature of this body is further increased and its most intense radiation corresponds to 10000Å , then find the value of energy radiated in Jm^-2s^-1 .

A star behaves like a perfectly black body emitting radiant energy The ratio of radiant energy per second by this star to that emitted by another star having 8 times the radius of former, but having temperature, one-fourth that of the former in Kelvin is .