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A wooden block, with a coin placed on it...

A wooden block, with a coin placed on its top, floats in water as shown in figure. The distance l and h are shown here. After some time the coin falls into water. Then

A

`l` decreases and `h` increase

B

`l` increases and `h` decreases

C

both `l` and `h` increases

D

both `l` and `h` decrease

Text Solution

Verified by Experts

The correct Answer is:
D
`l` will decrease because the block moves up. `h` will decrease because the coin will displace the volume of water `(V_(1))` equal to its own volume when it is in the water whereas when it is on the block it will displace the volume of water `(V_(2))` whose weight is equal to weight of coin and since density of coin is greater than the density of water `V_(1) lt V_(2)`
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