A block of wood just floats in water. If the water is heated, the block will

sink

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just float in water

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float with some part outside water

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keep bouncing up and down

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Solution

The correct option is A
sink

On heating, the density of water decreases, so upthrust on block decreases. Therefore the weight of the block exceeds the upthrust due to which it sinks.

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A block of wood just floats in water. If the water is heated, the block will

The correct option is A sink On heating, the density of water decreases, so upthrust on block decreases. Therefore the weight of the block exceeds the upthrust due to which it sinks.

The correct option is A
sink

On heating, the density of water decreases, so upthrust on block decreases. Therefore the weight of the block exceeds the upthrust due to which it sinks.