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Question

A homogeneous solid cylinder of length L(L<H/2), cross-sectional area A is immersed such that it floats with its axis vertical at the liquid-liquid interface with length L4 in the density liquid as shown in the figure. The lower density liquid is open to atmosphere having pressure P0. Then, density D of solid is given by

157545_d13b593349514c1e9570be03cbdd1275.png

A
54d
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B
45d
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C
4d
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D
d5
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Solution

The correct option is A 54d
According to the law of floatation
weight of the block=weight of the two liquids displaced
LADg=L4A(2d)g+3L4AdgD=12d+34d=54d

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