A wooden block, with a coin placed on its top, floats in water as shown in the figure. The distances h and l are shown there. After sometime, the coin falls into the water. Then :

Question

A wooden block, with a coin placed on its top, floats in water as shown in the figure. The distances h and l are shown there. After sometime, the coin falls into the water. Then : (A) both l and h increase (B) both l and h decrease (C)  l decreases and h increases (D)  l increases and h decreases

Tardigrade Admin · Accepted Answer

l will decrease because the block moves up. H will decrease because the coin will displace thevolume (v1) of water equal to its own volumewhen it is in water whereas when it is on theblock it will displace the volume of water (v1) whose weight is equal to weight of coin andsince density of coin is greater than the density of water v1<v2.

Q. A wooden block, with a coin placed on its top, floats in water as shown in the figure. The distances $h$ and $l$ are shown there. After sometime, the coin falls into the water. Then :

both $l$ and h increase

both $l$ and h decrease

$l$ decreases and h increases

$l$ increases and h decreases

Q. A wooden block, with a coin placed on its top, floats in water as shown in the figure. The distances h and l are shown there. After sometime, the coin falls into the water. Then :

both l and h increase

both l and h decrease

l decreases and h increases

l increases and h decreases

Q. A wooden block, with a coin placed on its top, floats in water as shown in the figure. The distances $h$ and $l$ are shown there. After sometime, the coin falls into the water. Then :

both $l$ and h increase

both $l$ and h decrease

$l$ decreases and h increases

$l$ increases and h decreases