Question

Define Archimedes’ principle. How can it be experimentally verified?

Answer 1

Archimedes Principle:

1. This principle states that when a body in a liquid loses weight by an amount equal to the weight of the liquid displaced.
2. This principle also states that when a body is immersed in a liquid, an upward thrust, equal to the weight of the liquid displaced, acts on it.

Experimental verification of Archimedes’ principle:

1. Take a tumbler of water and place the tumbler in a beaker of known weight. Take a small stone and measure the weight of the stone by a spring balance.
2. Note down this weight. Now, dip the stone completely in the tumbler slowly. Water from the tumbler will flow down to the beaker.
3. Gently take away the tumbler. Measure the weight of the beaker.
4. You can find that the increased weight of the beaker is the same as the weight of the stone.

Hence, Archimedes’ principle is verified.