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प्रश्न
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.
विकल्प
If both assertion and reason are true and reason is the correct explanation of assertion.
If both assertion and reason are true but reason is not the correct explanation of assertion.
If assertion is true but reason is false.
If assertion is false but reason is true.
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उत्तर
If both assertion and reason are true and reason is the correct explanation of assertion.
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संबंधित प्रश्न
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.
A body of weight W is floating in a liquid. Its apparent weight will be
Why does a ship make of iron not sink in water, while an iron nail sinks in it?
A test tube loaded with lead shots weighs 25 gf and floats upto the mark X in water. When the test tube is made to float in brine solution, it needs 5 gf more of lead shots to float upto level X. Find the relative density of brine solution.
Explain the following:
Icebergs floating in the sea are very dangerous for ships.
Why does a helium balloon float in air?
Hydrometer is based on the principle of ______.
Where do we use lactometers?
Name different types of Hydrometers with their applications.
Assertion (A): Lactometer is used to check the purity of milk.
Reason (R): Lactometer measures the cream content of milk.
