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
- BDecrease
- CRemain unaffected
- DNone of these
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.


$Assertion$ $(A)$ : The angular speed of the moon in its orbit about the earth is more than the angular speed of the earth in its orbit about the sun.
$Reason$ $(R)$: The moon takes less time to move around the earth than the time taken by the earth to move around the sun.
In the light of the above statements, choose the most appropriate answer from the options given below: