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A glass rod of diameter d1 =1.5 mm is ...

A glass rod of diameter ` d_1 =1.5 mm ` is inserted symmetrically into a glass capillary with inside diameter `d_2=2 mm` . Then the whole arrangement is vertically oriented and broght in contact with the surface of water . Surface tension and density of water are `0.075 N//m` and `10^3 kg//m^3` respectively . the height throgh which the water will rise in the capillary is `(g=10 m//s^2)`

A

12 cm

B

3 cm

C

6 cm

D

36 cm

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The correct Answer is:
C
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