A block of wood is floating in water at 0 ° C . The temperature of water is slowly raised from 0 ° C to 10 ° C . With the rise in temperature, the volume of block V above water level will

Question

A block of wood is floating in water at 0 ° C . The temperature of water is slowly raised from 0 ° C to 10 ° C . With the rise in temperature, the volume of block V above water level will (A) increase (B) decrease (C) first increase and then decrease (D) first decrease and then increase

Tardigrade Admin · Accepted Answer

From 0 ° C to 4 ° C , density of water increases and from 4 ° C to 10 ° C , density of water decreases. The volume of block above water will increase with increase in density of water as lesser submerged part is required to create a buoyancy force enough to balance weight of block. Similarly volume of block above water will decrease with decrease in density.

Q. A block of wood is floating in water at 0∘C . The temperature of water is slowly raised from 0∘C to 10∘C . With the rise in temperature, the volume of block V above water level will

increase

decrease

first increase and then decrease

first decrease and then increase

Q. A block of wood is floating in water at $0^{\circ} C$ . The temperature of water is slowly raised from $0^{\circ} C$ to $10^{\circ} C$ . With the rise in temperature, the volume of block $V$ above water level will