Two bodies A and B are placed in an evacuated vessel maintained at a temperature of `27^(@)C`, the temperature of A is `327^(@)C` and that of B is `227^(@)C`. Then the ratio of heat loss by body A and B is

Two bodies A and B placed in an evacuated vessel maintained at a temperature of 27^@C , the temperature of A is 327^@C and that of B is 227^@C . Then the ratio of heat loss by body A and B is

Two bodies A and B are kept in evacuated vessels maintained at a temperature of 27^(@)C . The temperature of A is 527^(@)C and that of B is 127^(@)C . Compare the rates at which heat is lost from A and B.

Three bodies A, B and C are in thermal equilibrium. The temperature of B is 45^@ C. then the temperature of C is

Three bodies A, B and C are in thermal equilibrium. The temperature of B is 45^@ C. then the temperature of C is

Three bodies A, B and C are in thermal equilibrium. The temperature of B is 45^@ C. then the temperature of C is

The temperature of a body is increased from − 73^(@)C" to "327^(@)C . Then the ratio of emissive power is

Two bodies A and B are kept in an evacuated chamber at 27^@C . The temperatures of A and B are 327^@ and 427^@C and respectively. The ratio of rates of loss of heat from A and B will be–

Two identical spheres A and B are suspended in an air chamber which is maintained at a temperature of 50^@C . Find the ratio of the heat lost per second from the surface of the spheres if a. A and B are at temperatures 60^@C and 55^@C , respectively. b. A and B are at temperatures 250^@C and 200^@C , respectively.

Two identical spheres A and B are suspended in an air chamber which is maintained at a temperature of 50^@C . Find the ratio of the heat lost per second from the surface of the spheres if a. A and B are at temperatures 60^@C and 55^@C , respectively. b. A and B are at temperatures 250^@C and 200^@C , respectively.