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Question

A U-shaped tube is filled with water as shown in figure. An immiscible liquid of relative density 0.8 is poured in one limb so that its length is 10 cm. The difference in upper level of liquids in two limbs is


A
10 cm
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B
2 cm
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C
8 cm
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D
4 cm
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Solution

The correct option is B 2 cm

(0.8) × g × 10 = 1 × g × h

h = 8 cm

Difference = 10 – 8 = 2 cm

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