Fluid Mechanics Viscosity Question 269
A wooden block, with a coin placed on its top, floats in water as shown in fig. The distance d and h are shown there. After some time the coin falls into the water. Then
Options:
A) $ \ell $ decreases and h increases
B) $ \ell $ increases and h decreases
C) Both $ \ell $ and h increase
D) Both $ \ell $ and h decrease
Show Answer
Answer:
Correct Answer: D
Solution:
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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