Physics-
General
Easy

Question

A pan balance has a container of water with an overflow spout on the right-hand pan as shown. It is full of water right up to the overflow spout. A container on the left-hand pan is positioned to catch any water that overflows. The entire apparatus is adjusted so that it’s balanced. A brass weight on the end of a string is then lowered into the water, but not allowed to rest on the bottom of the container. What happens next?

  1. Water overflows and the right side of the balance tips down.    
  2. Water overflows and the left side of the balance tips down.    
  3. Water overflows but the balance remains balanced.    
  4. Water overflows but which side of the balance tips down depends on whether the brass weight is partly or completely submerged.    

The correct answer is: Water overflows but which side of the balance tips down depends on whether the brass weight is partly or completely submerged.

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