146505
A solid ball of metal has a concentric spherical cavity within it. If the ball is heated, the volume of the cavity will
1 increase
2 decrease
3 remain unaffected
4 None of these
Explanation:
A If the ball is heated then it will expand at free surface. So, the ball will expand at outer and inner surfaces. Hence, volume of cavity increases.
UPSEE - 2008**
Thermal Properties of Matter
146515
If the sphere of iron is heated, then its
1 density decreases
2 volume increases
3 radius decreases
4 None of these
Explanation:
B When the sphere of iron is heated, then its volume will increase due to volumetric expansion. In volume expansion, volume is proportional to the cube of radius.
146505
A solid ball of metal has a concentric spherical cavity within it. If the ball is heated, the volume of the cavity will
1 increase
2 decrease
3 remain unaffected
4 None of these
Explanation:
A If the ball is heated then it will expand at free surface. So, the ball will expand at outer and inner surfaces. Hence, volume of cavity increases.
UPSEE - 2008**
Thermal Properties of Matter
146515
If the sphere of iron is heated, then its
1 density decreases
2 volume increases
3 radius decreases
4 None of these
Explanation:
B When the sphere of iron is heated, then its volume will increase due to volumetric expansion. In volume expansion, volume is proportional to the cube of radius.
