Question

If a stream of air is blown under one of the pans of a physical balance in a equilibrium then the pan will be

Answer 1

Answer:

increase air velocity

Explanation:

When air is blown below one of the pans, there will be an increase in air velocity due to which the pressure decreases, and hence, the pan goes down

Answer 2

When air is blown under the right hand pan, the upthrust from air fluid is destroyed, thus the upthrust on left hand pan becomes the unbalanced force and causes the right hand pan to move down