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A vertical U-tube of uniform cross-secti...

A vertical U-tube of uniform cross-section contains water jn both the arms. A 10 cm glycerine column (R.D. = 1.2) is added to one of the limbs. The level difference between the two free surfaces in the two limbs wiil be

A

4cm

B

2cm

C

6cm

D

8cm

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