MCQ
A solid ball of metal has a concentric spherical cavity within it. If the ball is heated, the volume of the cavity will
  • Increase
  • B
    Decrease
  • C
    Remain unaffected
  • D
    None of these

Answer

Correct option: A.
Increase
a
(a) When the ball is heated, expansion of ball and cavity both occurs, hence volume of cavity increases.

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