SSC General Science & Technology Sample Paper NCERT Sample Paper-2

  • question_answer
    Which one of the following would a hydrogen balloon find easier to lift?

    A)  1 kg of copper

    B)  1 kg of water

    C)  1 kg of loosely packed feathers

    D)  All the same

    Correct Answer: C

    Solution :

    [c] 1kg mass of feathers is less dense than copper, so has more buoyancy in air. So it's easier to lift.

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