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Three liquids of densities ρ1,ρ2 and ρ3 (ρ1>ρ2>ρ3) having the same value of the surface tension T, rise to the same height in three identical capillaries. The angles of contact θ1,θ2 and θ3 obey:
1. π2>θ1>θ2>θ30
2. 0θ1<θ2<θ3<π2
3. π2<θ1<θ2<θ3<π
4. π>θ1>θ2>θ3>π2

Subtopic:  Capillary Rise |
 68%
From NCERT
NEET - 2016
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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 2r is immersed in water. The mass of water that will rise in this tube is:

1. 5.0 g 2. 10.0 g
3. 20.0 g 4. 2.5 g
Subtopic:  Capillary Rise |
 62%
From NCERT
NEET - 2020
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NEET 2021 - Achiever Batch - Aryan Raj Singh
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Links
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When a capillary tube is dipped into a liquid, the liquid neither rises nor falls in the capillary.

a. the surface tension of the liquid must be zero.
b. the contact angle must be 90.
c. the surface tension may be zero.
d. the contact angle may be 90.

Choose the correct option:

1. (a) and (b)
2. (b) and (c)
3. (c) and (d)
4. all of these

Subtopic:  Capillary Rise |
 51%
From NCERT
To view explanation, please take trial in the course.
NEET 2021 - Achiever Batch - Aryan Raj Singh
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To view explanation, please take trial in the course.
NEET 2021 - Achiever Batch - Aryan Raj Singh