Civil Engineering - Hydraulics - Discussion

Discussion Forum : Hydraulics - Section 5 (Q.No. 9)
9.
A rise or fall of liquid in a glass tube of a very small diameter when dipped is
directly proportional to the force per unit length of periphery
direcly proportional to the sine of the angle of contact
directly proportional to the specific weight of liquid
inversely proportional to the diameter of the glass tube.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
22 comments Page 1 of 3.

Sathish said:   3 years ago
Option D is the correct answer.

In option A, they are talking about surface tension of pheriphery. In the formula, we are talking about fluid. So, it's wrong.

Shahid yousuf said:   4 years ago
D is the correct answer.
(1)

Manish Chaurasiya said:   4 years ago
Agree, Both A & D are correct.

MJM Gcek said:   4 years ago
Both A and D are correct.

Pijush Mal said:   5 years ago
Inversely proportional to Sp weight and (diameter) ^2.

Shimin said:   6 years ago
It should be "inversely proportional to the specific weight of liquid".
(1)

Suhas gotmare said:   7 years ago
h=(4sigma cosθ) ÷(wd).

Here, h Inversely proportional to sp. Weight of liquid.
(1)

Akshay said:   7 years ago
Capillarity is due to rise and fall of liquid. I. E cohesion and adhesion. And we know h=4σcosθ/wr hence is inversely proportional to diameter. Hence option D is correct.

Where surface tention means force per unit lenght and it is due to cohesion only. Hence it does not take in part of rise and fall of liquid so option A can't be considered.
(2)

Basavaraj m k said:   7 years ago
According to me, Both A and D is correct.

Shubham said:   7 years ago
Both A and D is correct.


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