Question
Question: A wooden block with a coin placed on its top, floats in water as shown in figure. The distance l and...
A wooden block with a coin placed on its top, floats in water as shown in figure. The distance l and h are shown in the figure. After some time the coin falls into the water. Then
A
l decreases and h increases
B
l increases and h decreases
C
Both l and h increase
D
Both l and h decrease
Answer
Both l and h decrease
Explanation
Solution
When the coin falls, the block moves upwards hence l decreases h will also decrease because when the coin is in the water it will displace equal volume of water, whereas when it is on the block an equal weight of water is displaced.