A fine capillary tube of radius r dipped in a beaker containing water. The water rises in capillary upto height h. Let \\theta= angle of contact and \\rho = density of water. Now, choose the correct options.

Mass of liquid in capillary tube is \\pir^{2} h \\rho

Mass of liquid in capillary tube is \\pir^{2}(h+\frac{r}{3}) \\rho

Surface tension of water is T={ { hr\rho g }}/{2 \cos \\theta}

Surface tension of water in glass capillary is approximately T={r(h+\frac{r}{3}) \\rho g}/{2}

JEE Advanced 2021 Full Test 4 Paper 2

PART – I

Physics

SECTION – A (One or More than one correct type)
This section contains 06 multiple choice questions. Each question has FOUR options (A), (B), (C) and (D). ONE OR MORE THAN ONE of these four options is(are) correct.

Question : 1 of 54

Marks: +1, -0

A fine capillary tube of radius r dipped in a beaker containing water. The water rises in capillary upto height h. Let θ= angle of contact and ρ= density of water. Now, choose the correct options.

Mass of liquid in capillary tube is πr2hρ
Mass of liquid in capillary tube is πr2(h+
r
3
)ρ
Surface tension of water is T=
hrρg
2‌cos‌θ
Surface tension of water in glass capillary is approximately T=
r(h+
r
3
)ρg
2

Validate

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