A body having a surface area of 5.0" cm"^(2), radiates 300 J of energy per minute at a temperature of 727^(@)C. The emissivity of the body is (Stefan.s constant =5.67xx10^(-8)W//m^(2)//K^(4))

A body having a surface area of 5.0" cm"^(2), radiates 300 J of energy

1.	A body having a surface area of 5.0" cm"^(2), radiates 300 J of energy per minute at a temperature of 727^(@)C. The emissivity of the body is (Stefan.s constant =5.67xx10^(-8)W//m^(2)//K^(4))
Answer» 0.09 0.18 0.36 0.54 Answer :B