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Question

A wooden block with a coin placed on its top, float in water as shown in fig.10.3
The distance l and h are shown in the figure. After some time the coin falls into the water. then
1550283_9529164e1716439382bc5a21375a3f6f.png

A
l decreases.
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B
h decreases.
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C
l increases.
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D
h increases.
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Solution

The correct options are
A l decreases.
B h decreases.
As the block moves up with the fall of coil, l decreases, similarly h will also decrease because when the coin is in water, it displaces water equal to its own volume only.

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