Civil Engineering - Hydraulics - Discussion
Discussion Forum : Hydraulics - Section 3 (Q.No. 37)
37.
In an open tube, free surface of mercury remains
Discussion:
33 comments Page 1 of 4.
Pradip kumar Ray said:
3 years ago
C is correct.
Because in the case of mercury medium cohesive force between molecules is greater than adhesive force and capillary fall occurs.
So C is correct.
Because in the case of mercury medium cohesive force between molecules is greater than adhesive force and capillary fall occurs.
So C is correct.
Ranjit said:
3 years ago
Curve upward. Heavy liquid and water downward cover.
Prince said:
4 years ago
The fluid falls down due to strong cohesion but its shape is curved downwards. So the answer is B.
MJM Gcek said:
4 years ago
@ Manoj.
You are correct but here it is asked curved in which direction which should be curved upwards or convex upwards.
You are correct but here it is asked curved in which direction which should be curved upwards or convex upwards.
(4)
Anjali said:
5 years ago
@Mahrukh.
You are right, thanls.
You are right, thanls.
Manoj vardhan said:
5 years ago
Right answer is Option C.
Because : when adhesion force is less than the cohesion force, liquid gather into droplet. For Ex (Mercury).
Cohesion>Adhesion, Top surface of mercury is convex & mercury fall in the capillary tube.
Because : when adhesion force is less than the cohesion force, liquid gather into droplet. For Ex (Mercury).
Cohesion>Adhesion, Top surface of mercury is convex & mercury fall in the capillary tube.
(1)
Dipu said:
5 years ago
B will be the correct answer.
(1)
Anmol Acharya said:
5 years ago
The meniscus is upper i.e, the surface curves downwards.
Tanmoy Karmakar said:
6 years ago
B is the correct.
Curved Upward because mercury has a high cohesive value than adhesion.
Curved Upward because mercury has a high cohesive value than adhesion.
Muhammad Saqib said:
6 years ago
I think it should be option B, because cohesion is more than adhesion, same as a case in water.
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