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प्रश्न
A body of weight W is floating in a liquid. Its apparent weight will be
पर्याय
Equal to W
Less than W
Greater than W
Zero
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उत्तर
A body of weight W is floating in a liquid. Its apparent weight will be Zero
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संबंधित प्रश्न
A block of wood is so loaded that it just floats in water at room temperature. What change will occur in the state of floatation, if
(a) Some salt is added to water, (b) Water is heated?
Give reasons.
A piece of ice floating in a glass of water melts, but the level of water in the glass does not change.
Give reasons.
Hint: Ice contracts on melting.
What fraction of metal of density 3400 kgm-3 will be above the surface of mercury of density 13600 kgm-3, while floating in mercury?
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?
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.
Why do petroleum-based products float on the surface of the water?
Where do we use lactometers?
