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The angle of contact between a glass capillary tube of length 10 cm and a liquid is 90deg. If the capillary tube is dipped vertically in the liquid, then the liquid (a) Will rise in the tube (b) Will get depressed in the tube (c) Will rise up to 10 cm in the tube and will over flow (d) Will neither rise nor fall in the tube

The angle of contact between a glass capillary tube of length 10 cm and a liquid is 90deg. If the capillary tube is dipped vertically in the liquid, then the liquid

(a) Will rise in the tube

(b) Will get depressed in the tube

(c) Will rise up to 10 cm in the tube and will over flow

(d) Will neither rise nor fall in the tube

Grade:

1 Answers

Saurabh Koranglekar
askIITians Faculty 10335 Points
4 years ago
Dear student

The right(900)angle of contact implies that cohesion force & adhesive forces are equal in magnitude. Hence we will observe no capillary rise in this case.

Regards

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