The temperature of a piece of iron is 27^(@)C and it is radiating energy atthe rate of QkWm^(-2). If its temperature is raised to 151^(@)C, the rate of radiation of energy will become approximately

The temperature of a piece of iron is 27^(@)C and it is radiating ener

1.	The temperature of a piece of iron is 27^(@)C and it is radiating energy atthe rate of QkWm^(-2). If its temperature is raised to 151^(@)C, the rate of radiation of energy will become approximately
Answer» `2QkWm^(-2)` `4QkWm^(-2)` `6QkWm^(-2)` `8QkWm^(-2)` ANSWER :B