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Question
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.
Options
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.
Solution
If both assertion and reason are true and reason is the correct explanation of assertion.
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Explain the following:
An egg sinks in fresh water but floats in a strong solution of salt.
Why does a helium balloon float in air?
Where do we use lactometers?
How do submarines sink and float in water?
Assertion (A): Lactometer is used to check the purity of milk.
Reason (R): Lactometer measures the cream content of milk.
