A block of wood is so loaded that it just floats in water at room temperature. What change will occur in the state of floatation, if water is heated?

Floats with some part above water

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Just floats

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Sinks

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Floats completely above water

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Solution

The correct option is C Sinks
Sinks.
On heating, the density of water decreases. So, upthrust on block decreases and weight of block exceeds upthrust due to which it sinks.

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A block of wood is so loaded that it just floats in water at room temperature. What change will occur in the state of floatation, if water is heated?

The correct option is C SinksSinks.On heating, the density of water decreases. So, upthrust on block decreases and weight of block exceeds upthrust due to which it sinks.

The correct option is C Sinks
Sinks.
On heating, the density of water decreases. So, upthrust on block decreases and weight of block exceeds upthrust due to which it sinks.