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A U-tube whose ends are open and whose l...

A U-tube whose ends are open and whose limbs are vertical contains oil of specific gravity 0.60 and surface tension 30 dyne/cm. If one limb has a diameter of 1mm and the other 2mm, what is the level difference of oil in the two limbs ? (Assume angle of contact to be zero).

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The correct Answer is:
10.2mm
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