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Water rises up to a height of 5 cm in a capillary tube of radius 2 mm. what is the radius of the radius of the capillary tube if the water rises up to a height of 10 cm in another capillary? (a) 4 mm (b) 1 mm (c) 3 mm (d) 1 cm

Water rises up to a height of 5 cm in a capillary tube of radius 2 mm. what is the radius of the radius of the capillary tube if the water rises up to a height of 10 cm in another capillary?
(a) 4 mm (b) 1 mm
(c) 3 mm (d) 1 cm

Grade:12

2 Answers

Saurabh Koranglekar
askIITians Faculty 10335 Points
3 years ago
576-385_1.PNG
Kushagra Madhukar
askIITians Faculty 628 Points
3 years ago
Dear student,
Please find the solution to your problem below.
 
SInce, the height of capillary rise depends inversely on the size of tube.
Hence, h2/h1 = r1/r2
or, r2 = r1xh1/h2 = 2 x 5/10 = 1 mm
 
Hope it helps.
Thanks and regards,
Kushagra

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