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Take a piece of stone and tie it to one end of a rubber string or a spring balance. Suspend the stone by holding the balance or the string as shown in the figure (a).
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08/01/2021 3:19 pm
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Take a piece of stone and tie it to one end of a rubber string or a spring balance.
Suspend the stone by holding the balance or the string as shown in the figure (a).
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08/01/2021 3:20 pm
- Note the elongation of the string or the reading on the spring balance due to the weight of the stone.
- Now, slowly dip the stone in the water in a container as shown in Fig. (b).
- Observe what happens to the elongation of the string or the reading on the balance.
Observations :
- In Fig. (a) the elongation of the string is 6 cm.
- In Fig. (b) when the stone is dipped in water the length of string reduced to 5 cm.
- The length of the string in case (b) decreases due to the upward force exerted by water on the stone called as buoyant force.
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