MHT CET · Physics · Mechanical Properties of Fluids
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 \(\left(\frac{h_1}{h_2}\right)\) of liquids in the two capillary tubes is (Their angle of contacts are same)
- A \(\frac{10}{7}\)
- B \(\frac{9}{10}\)
- C \(\frac{10}{9}\)
- D \(\frac{1}{2}\)
Answer & Solution
Correct Answer
(B) \(\frac{9}{10}\)
Step-by-step Solution
Detailed explanation
\(h = \frac{2T \cos\theta}{r \rho g}\) \(\frac{h_1}{h_2} = \frac{T_1}{T_2} \times \frac{\rho_2}{\rho_1}\)
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