If two capillary tubes of radii r1 and r2 in the ratio 1:2 are dipped vertically in water, then the ratio of capillary rises in the respective tubes is
A
1:4
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B
4:1
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C
1:2
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D
2:1
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E
1:√2
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Solution
The correct option is D2:1 Height of water, h=2Tcosθrdg Since, surface tension and density are same. ∴h1h2=r2r1 ∴h1h2=21