Three highly conducting concentric spherical shells acting

Last updated: 6/13/2023

Three highly conducting concentric spherical shells acting as black body of radii nr2 and r3 are kept in vacuum The region between the shells is evacuated and they can exchange energy only by radiation Inside the innermost shell there is a heater of constant power P In steady state o Stefan s constant 1 2 3 4 Temperature of outermost shell is Temperature of middle shell is P 4TO 1 4 P 4TO Temperature of innermost shell is 1 4 1 1 4 1 4 P 4RO If both outer and middle shell were removed the temperature of innermost shell would decrease 1 4