Question

a balloon filled with helium gas rises up .give reason.​

Answer 1

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. ... So there is no upward force ( buoyant force by air) acting on the balloon and the balloon will remains at the same height

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. ... So there is no upward force ( buoyant force by air) acting on the balloon and the balloon will remains at the same height.