A body of emissivity `(e = 0.75)`, surface area of `300cm^(2)` and temperature `227^(@)C` is kept in a room at temperature `27^(@)C`. Calculate the initial value of net power emitted by the body.

A blackbody of surface area 10cm^(2) is heated to 127^(@)C and is suspended in a room at temperature 27^(@)C calculate the initial rate of loss of heat from the body to the room.

A blackbody of surface area 10cm^(2) is heated to 127^(@)C and is suspended in a room at temperature 27^(@)C calculate the initial rate of loss of heat from the body to the room.

A blackbody of sarface area 10cm^(2) is heated to 127^(@)C and is suspended in a room at temperature 27^(@)C calculate the initial rate of loss of heat from the body to the room.

A body of surface area 10 cm^(2) and temperature 727 ^(@) C emits 600 J of enrgy per minute. Find its emissivity.

A black body with surface area 0.001 m^(2) is heated upto a temperature 400 K and is suspended in a room temperature 300K. The intitial rate of loss of heat from the body to room is

A black body with surface area 0.001 m^(2) is heated upto a temperature 400 K and is suspended in a room temperature 300K. The intitial rate of loss of heat from the body to room is

A body of surface area 10 cm^2 and temperature 727^@C emits 300 J of energy per minutes.Find the emissivity.

A black body with surface area 0.001 m^2 is heated upto a temperature 400 K and is suspended in a room temperature 300 K. The initial rate of loss of heat from the body to room is

A metallic ball of surface area 300 cm^2 at a temperature of 227^@C is placed in a container at 27^@C . Calculate the rate of loss of heat radiation by the ball if emissivity of ball is 0.3, sigma = 5.67 xx 10^(-5) erg cm^(-2) s^(-1) K^(-4) .