Question

What is the scientific principle working in two activities, viz. ball does not fall when we blow from tube of the funnel and ball floats when we hold it above funnel and blow air?

Answer 1

Explanation:

See, the harder you blow, the harder it is for the ball to leave the funnel, thanks to the Bernoulli principle. Basically, the faster a fluid flows, the less pressure it creates. In this case the fluid is air. When you blow through the funnel you create a current of fast moving air around the ball .The ball cannot be blown out of the funnel because when we blow harder, we are creating an even lower pressure. The difference in pressure holds the ball to the funnel because the air surrounding the funnel wants to move towards the area of lower pressure.