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प्रश्न
State the principle of floatation. What can you say about the average density of a ship floating on water?
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उत्तर
Principle of floatation states that a floatating body displaces an amount of fluid equal to its own weight.
Ship is designed in such a manner that it encloses large quantity of air in air tight bags and in rooms and corridors which makes the average density of ship less than that of water.
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संबंधित प्रश्न
An iron nail sinks in the water while an iron ship floats on water. Explain the reason.
Why does a ship make of iron not sink in water, while an iron nail sinks in it?
A block of wood of volume 25 cm3 floats in water with 20 cm3 of its volume immersed in water.
Calculate:
(1) density of wood
(2) the weight of block of wood.
Explain the following:
An egg sinks in fresh water but floats in a strong solution of salt.
Explain the following:
A hydrometer is made heavy near the bottom.
How does an object’s density determine whether the object will sink or float in water?
State the laws of flotation.
Assertion: To float, body must displace liquid whose weight is equal to the actual weight.
Reason: The body will experience no net downward force in that case.
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