Question
A cube of edge 15 cm is immersed completely in a rectangular vessel containing water . If the dimensions of the base of vessel are 20 cm x 15 cm. Find the rise in water level .
Answer: Option A
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Increase in volume = Volume of the cube = (15 x 15 x 15) `cm^3`
`:.` Rise in water level = `((Volume)/(Area)) = ((15 xx 15 xx 15)/(20 xx 15))` cm = 11.25 cm
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