Q. Which one of the following would a hydrogen balloon find easiest to lift.

  • (A) 1kg of water.
  • (B) 1kg of copper.
  • (C) 1kg of loosely packed cotton.
  • (D) All the same.
✅ Correct Answer: (C) 1kg of loosely packed cotton.

Published by Mr. Dubey ⭐ 111.22K Points at 29-Sep-2022 07:21 am in Physics

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