Physics
Assertion (A) : A loaded ship is submerged more while an unloaded ship is less submerged.
Reason (R) : A loaded ship displaces more water in comparison to an unloaded ship in order to float.
- both A and R are true and R is the correct explanation of A
- both A and R are true and R is not the correct explanation of A
- assertion is false but reason is true
- assertion is true but reason is false
Fluids Upthrust
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Answer
both A and R are true and R is the correct explanation of A
Explanation
Assertion (A) is true because a loaded ship has more weight, so it sinks deeper to displace more water for buoyancy but an unloaded ship is lighter and floats higher.
Reason (R) is true because according to Archimedes’ principle, the volume of water displaced equals the weight of the ship. So, a heavier (loaded) ship must displace more water to float. So here Reason justifies the Assertion.
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Related Questions
Assertion (A) : A bucket filled with water is heavier till it is immersed in water in well.
Reason (R) : The effect of upthrust is that the weight of body immersed in liquid appears to be lighter than its actual weight.
- both A and R are true and R is the correct explanation of A
- both A and R are true and R is not the correct explanation of A
- assertion is false but reason is true
- assertion is true but reason is false
Assertion (A) : An iron nail sinks in water, but floats in mercury.
Reason (R) : The density of iron is equal to density of mercury but greater than water.
- both A and R are true and R is the correct explanation of A
- both A and R are true and R is not the correct explanation of A
- assertion is false but reason is true
- assertion is true but reason is false
State the principle of floatation.
When a piece of wood is suspended from the hook of a spring balance, it reads 70 gf. The wood is now lowered into water. What reading do you expect on the scale of spring balance?
[Hint: The piece of wood will float on water and while floating, apparent weight = 0].