MHT CET 2025 Physics question
Two capillary tubes of same diameter are kept vertically in two liquids whose densities are in the ratio 4:3. If their surface tensions are in the ratio 6:5, the ratio of heights of liquids in the two capillary tubes h is (Their angle of contacts are same)
Answer: (B)
Solution
Capillary rise: . The tubes have the same radius and the same contact angle, so . Therefore $ = × =
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