Question

Explain briefly why a balloon filled with helium gas rises in air. Why does the balloon rise to a particular height above the ground and does not rise further ?

Answer 1

because after further level vaccume increases and there presure apply on balloon by air around it thats why after particular height above the ground balloon does not rise further

Answer 2

Answer:

The helium gas in the balloon is lighter and less dense than the air outside the balloon. This makes a helium balloon rise up. The balloon will stop ascending if the balloon reaches a height where density of air is nearly equal to the density of helium gas within the balloon.

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