Home
Class 12
PHYSICS
Two bodies A and B are placed in an evac...

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

A

`2:1`

B

`6:5`

C

`16":"25`

D

`3:2`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Similar Questions

Explore conceptually related problems

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

A body radiates energy 5 W at a temperature of 127^(@)C . If the temperature is increased to 927^(@)C , then it radiates energy at the rate of

A black body radiates 20 W at temperature 227^(@)C . If temperature of the black body is changed to 727^(@)C then its radiating power wil be

The temperatures of two bodies A and B are 727^(@)C and 127^(@)C . The ratio of rate of emission of radiations will be

Compare rates of loss of heat by the body at temperature 527^@C and 127^@C . Temperatue of surrounding is 27^@C .

A black body at a temperature of 227 ^@C radiates heat at a rate of 5 cal//cm^2s . At a temperature of 727 ^@C , the rate of heat radiated per unit area will be

A spherical black body of 5 cm radius is maintained at a temperature of 327^@C . Then the power radiated will be ( sigma = 5.7 xx 10^(-8) SI unit )

Liquid is filled in a vessel which is kept in a room with temperature 20^@C . When the temperature of the liquid is 80^@C , then it loses heat at the rate of 60 (cal)/s . What will be the rate of loss of heat when the temperature of the liquid is 40^@C ?

Two spheres P and Q of the same colour having radii 8 cm and 2 cm respectively are maintained at temperatures 127^@C and 527^@C respectively. Then the ratio of the energy radiated by Pand Q is

The temperature of two bodies A and B are respectively 727^(@)C and 327^(@)C . The ratio H_(A) : H_(B) of the rates of heat radiated by them is