There are two spherical balls A and B of...

There are two spherical balls A and B of the same material with same surface, but the diameter of A is half that of B . If A and B are heated to the same temperature and then allowed to cool, then

Rate of cooling is same in both

Rate of cooling of A is four times that of B

Rate of cooling of A is twice that of B

Rate of cooling of A is `(1)/(4)` times that of B

Text Solution

Verified by Experts

The correct Answer is:

Topper's Solved these Questions

TRANSMISSION OF HEAT
ERRORLESS |Exercise Assertion & Reason|24 Videos
THERMOMETRY, THERMAL EXPANSION AND CALORIMETRY
ERRORLESS |Exercise Self Evaluation Test|15 Videos
UNITS, DIMENSION & MEASUREMENTS
ERRORLESS |Exercise All Questions|333 Videos

Similar Questions

Explore conceptually related problems

Two spheres A and B have the same radii but the capacity of A is greater than that of B . The surfaces of both are painted black. They are heated to the same temperature and allowed to cool in vacuum. Then,

Two spheres A and B have radius but the heat capacity of A is greater than that of B. The surfaces of both are painted black. They are heated to the same temperature and allowed to cool. Then initially

There are two thin spheres A and B of the same material and same thickness. They behave like black bodies, Radius of A is double that of B and Both have same temperature T. When A and B are kept in a room of temperature T_0 (lt T) , the ratio of their rates of cooling is (assume negligible heat exchange between A and B).

Two balls of same material and same surface finish have their diameters in the ratio 1:2. They are heated to the same temperature and are left in a room to cool by radiation, then the initial rate of loss of heat

A sphere, a cube and a thin circular plate, all having the same mass and made of the same material are heated to the same temperature and them allowed to cool. Which of them cools fastest ?

Two bars A and B of circular cross section, same volume and made of the same material, are subjected to tension. If the diameter of A is half that of B and if the force applied to both the rod is the same and it is in the elastic limit, the ratio of extension of A to that of B will be

ERRORLESS -TRANSMISSION OF HEAT-ET Self Evaluation Test

Four rods of silver, copper, brass and wood are of same shape. They ar...
Text Solution
|
The two opposite faces of a cubical piece of iron (thermal conductivit...
Text Solution
|
Wein's constant is 2892xx10^(-6) MKS unit and the value of lambda(m) f...
Text Solution
|
If at temperature T(1) = 1000 K the wavelength is 1.4 xx 10^(-6)m then...
Text Solution
|
The wavelength of maximum intensity of radiation emitted by a star is ...
Text Solution
|
Two friends A and B are waiting for another friend for tea. A took the...
Text Solution
|
There are two spherical balls A and B of the same material with same s...
Text Solution
|
Five identical rods are joined as shown in figure. Point A and C are ...
Text Solution
|
We cannot boil water inside the earth's satellite. Explain.
Text Solution
|
In the following figure, two insulating sheets with thermal resistance...
Text Solution
|
The top of an insulated cylindrical container is covered by a disc hav...
Text Solution
|
Figure. Shows two air filled bulbs connected by a U-tube partly filled...
Text Solution
|
Two conducting rods A and B of same length and cross-sectional area ar...
Text Solution
|
The area of the glass of a window of a room is 10 m^(2) and thickness ...
Text Solution
|
The spectrum from a black body radiation is a
Text Solution
|
The Wien’s displacement law express relation between
Text Solution
|
A black body is heated from 27^(@)C to 127^(@)C. The ratio of their en...
Text Solution
|
A body takes T minutes to cool from 62^@C to 61^@C when the surroundin...
Text Solution
|
A partition wall has two layers of different materials A and B in cont...
Text Solution
|
Water and turpentine oil (of specific heat less than that of water) ar...
Text Solution
|