A capillary tube of radius r is immersed in water and water rises in it to a height h . The mass of the water in the capillary is 5 g . Another capill - Physics MCQ NEET 2020 E1 2026 | ExamTest.live

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A capillary tube of radius r is immersed in water and water rises in it to a height h . The mass of the water in the capillary is 5 g . Another capillary tube of radius 2 r is immersed in water. The mass of water that will rise in this tube is:

Solution & Step-by-step Explanation

Height of rise h = \frac{2 T c o s θ}{r ρ g} \Rightarrow h \propto 1/ r .Mass m = ρ V = ρ (π r^{2} h) .Substituting h \propto 1/ r : m \propto r^{2} (1/ r) \Rightarrow m \propto r .If radius is doubled (2 r), the mass will also be doubled. m^{'} = 2 \times 5 g = 10 g

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A capillary tube of radius r is immersed in water and water rises in it to a height h . The mass of the water in the capillary is 5 g . Another capillary tube of radius 2 r is immersed in water. The mass of water that will rise in this tube is:

2.5 g

5.0 g

10.0 g

20.0 g

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