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When an air bubble rises in …

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When an air bubble rises in water what happens to its potential energy?

    • Posted by Kalpana Thejkumar 5 years, 1 month ago

    CBSE > Class 11 > Physics
    • 1 answers

    Yogita Ingle 5 years, 1 month ago

    Potential energy of air bubble decreases, because work is done by upthrust on the bubble.
    work done = - (change in potential energy )
    here bubble rise due to net force(buoyancy force , gravitational force, drag force which is negligible) so work done by this net force is positive since force and displacement is in the same direction. so change in P.E. is negative, this means potential energy is decreasing

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