Home
Class 12
PHYSICS
Two substance of same size are made of s...

Two substance of same size are made of same material but one is hollow and the other is solid. They are heated to same temperature, then

A

Rate of heat radiation in solid is more

B

Rate of heat radiation in hollow is more

C

Rate of heat radiation in both are equal

D

Depends on mass of the sphere

Text Solution

Verified by Experts

The correct Answer is:
C
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • Mock Test27

    AAKASH INSTITUTE|Exercise EXAMPLE|9 Videos

  • MOTION IN A PLANE

    AAKASH INSTITUTE|Exercise Assignement section -J (Aakash Challengers Questions)|4 Videos

Similar Questions

Explore conceptually related problems

There are two Cu spheres having same size. One of them is hollow and the other one is solid. Which will expand more if (i) they are heated through same temperature range. (ii) they are supplied with same amount of heat.

Two spheres of the same radius are made from the same material. One is hollow and the other is solid. If they are heated together from 20^@C" to "100^@C .

Knowledge Check

  • Two spheres of same size are made of the same metal but one is hollow and the other is solid. They are heated to same temperature, then

    A
    both spheres will expand equally
    B
    hollow sphere will expand more than the solid one
    C
    solid sphere will expand more than the hollow one
    D
    none of the above

  • Two spheres of the same size are made of the same metal, but one is hollow and the other is solid. They are heated to the same temperature. Then,

    A
    the hollow sphere will expand more
    B
    the solid sphere will expand more
    C
    both spheres will expand almost equally
    D
    only the solid sphere will expand

  • Statement-1: There are two spheres made of same amount of material, one of them is hollow and other is solid. They are heated to same temperature and left in identical surroundigs. The initial rate of cooling will be greater for hollow sphere. ltBrgt Statement-2: The rate of heat loss depends on surface area and temperature.

    A
    Statement-1 is true, statement-2 is true, statement-2 is a correct explanation for statement-1
    B
    Statement-1 is true, statement-2 is true, statement-2 is not a correct explanation for statement-1
    C
    Statement-1 is true, statement-2 is false
    D
    Statement-1 is false, statement-2 is true

    • Similar Questions

    Explore conceptually related problems

    Two rods, one of iron and the other of aluminium, are heated to the same temperature. Then,

    A solid cylinder, a solid cube and a solid sphere are made of the same material and have the same mass. They are heated to the same temperature and kept in a room. The one that will cool at the minimum rate is

    There are two metallic spheres of same radii but one is solid and the other is hollow, then

    A sphere, a cube, a cone and a thin disc all made up of the same material and all have the same mass. If they are heated to the same temperature theta and allowed to cool in identical surrounding then the initial rate of cooling is maximum for

    A solid sphere, a cube and a plate, all are made of same material and all have same mass. These are heated to a temperature 100^@C and then allowed to cool at the temperature of room. Which of these will cool down first –

    Home
    Profile