R

Ram Sharma • 193.88K Points
Coach Physics

Q. A hydrogen filled balloon rises in air because

  • (A) The density of air decreases with altitude
  • (B) The atmospheric pressure decreases with altitude
  • (C) The buoyant force exerted by the air on the balloon is greater than the weight of the balloon
  • (D) The acceleration due to gravity decreases with altitude
  • Correct Answer - Option(C)
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  • Filed under category Physics

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