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Surface Tension

Two solid iso...

Question

Two solid isotropic blocks A and B are placed as a shown in the figure. If block 'B' falls into the liquid, the level of liquid may :

A

decrease

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B

remains same

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C

increase

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D

can't say

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Solution

The correct option is B remains same
Here two cases arise,
1. When block B sinks
The volume of A is now occupied completely by B, and A rises to the surface of the liquid.
2. When block B submerged
The weight is still balanced and thus the level of water remains same.

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