An object is at a temperature of `400^(@)C` . At what temperature would it radiate energy twice as fast? The temperature of the surroundings may be assumed to be negligible

An object is at temperature of 400^(@)C . At what approximate temperature would it radiate energy twice as first ? The temperature of surroundings may be assumed to be negligible:

What is meant by temperature radiation ?

A black body is at a temperature of 527^(@)C , to radiate twice as much energy per second its temperature must be increased to

A black body at a high temperature T radiates energy at the rate of E. When the temperature falls to T/2,the radiated energy will be

A body cools in 7 minutes from 60^(@)C to 40^(@)C . What will be its temperature after the next 7 minutes? The temperature of the surrounding is 10^(@)C . Assume that Newton's law of cooling holds good throughout the process.

A body radiates energy 5 W at a temperature of 127^(@)C . If the temperature is increased to 927^(@)C , then it radiates energy at the rate of

A body radiates energy 5 W at a temperature of 127^(@)C . If the temperature is increased to 927^(@)C , then it radiates energy at the rate of

The temperature of a furnace is 827^@C . At which wavelength will it radiate maximum energy?