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Fluid Mechanics — JEE physics STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 ScienceJEE physicsFluid Mechanics1 Mark
Question
Assertion : A man sitting in a boat which is floating on a pond. If the man drinks some water from the pond, the level of the water in the pond decreases.
Reason : According to Archimede's principle the weight displaced by body is equal to the weight of the body.
✓

Answer

(e) The level of water does not change. The reason is thatondrinkingthewater(say(m\mathrm{gm}$ ), the weight of man increases by $m \mathrm{gm}$ and hence waterdisplacedbymanincreases by $m \mathrm{gm}$, tending to raise the level. However, this much amount ofwaterhasalready been consumed by the man. Therefore the level of pond remain same.

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