The energy of 6000 J is radiated in 5 minutes by a body of surface area `100 cm^2`. Find emissive power of a body.

Calculate the energy radiated in one minute by a black body of surface area 100 cm^2 when it is maintained at 227^@C ( sigma= 5.67 xx 10^-8 J/m^2sK^4 )

Calculate the energy radiated is one minutes by a black body of surface area 400cm^2 ,when it is maintained at 127^@C .

Calculate the energy radiated is one minute by a blackbody of surface area 200 cm^2 at 127^@C ( sigma = 5.7 xx 10^-8 Jm^-2s^-1K^-4 )

Total surface area of a cube is 216 cm^2. Find its volume.

What emissive power of perfectly black body ?

Emissive power of a perfectly black body

A metal cube of length 10 cm radiates heat at the rate of 60 watt. Find its emissive power of a perfectly black body at that temperature.

A metal block of mass 10 kg is kept on a table. If the contact surface area is 100 cm^2 . Find the pressure on the table.