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A solid ball of metal has spherical cavity inside it. If the ball is heated, the volume of the cavity will A. increase B. decrease C. remain the D. disappear

A solid ball of metal has spherical cavity inside it. If the ball is heated, the volume of the cavity will
A. increase
B. decrease
C. remain the
D. disappear

Grade:Upto college level

1 Answers

Saurabh Koranglekar
askIITians Faculty 10335 Points
3 years ago
Due to the coefficient of volume expansion, if the ball is heated then it will expand at free surface, so the ball will expand at outer and inner both surface. Hence, the volume of cavity which is inside the ball decreases.

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