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

Options

A. both `l` and `h` increase
B. Both `l` and `h` decrease
C. `l` decreases and `h` increases
D. `l` increases and `h` decreases

Answer

B

Explanation

I will decrease becasuse the block moves up `h` will decrease because the coin will displace the volume `(V_(1))`of water equal to its own vokume when it is in eater, whereas when it is on the block it will displace the volume oif water `(V_(2))` whose weight is equal to the weight of coin, isnce density of coin is greater than the density of water,
`:.V_(1)ltV_(2)`