Q. On heating a circular metallic disc with a circular hole at the centre, the diameter of the hole will

  • (A) increase
  • (B) first increase, then decrease
  • (C) decrease
  • (D) remain the same
✅ Correct Answer: (A) increase

Published by Ruchi Sharma ⭐ 9.87K Points at 07-Jan-2022 01:22 pm in Physics

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