Question

# A rectangular block is 5 cm×5 cm×10 cm in size. The block is first immersed in water with 5 cm side kept vertical. If it is then immersed with 10 cm side kept vertical, what change will occur in the level in water?

A
No change
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B
It will rise
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C
It will fall
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D
It may rise or fall depending on the density of block
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Solution

## The correct option is A No changeThe volume of the block is V=5×5×10=250 cm3When the block is immersed in water, the volume of displaced water=volume of the block(V)No matter how the block is immersed, the volume of the block is not going to change. Therefore, the level of water will not change if the block is immersed with the 10 cm side kept vertical.

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