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 2 of 4.
Chhaya said:
8 years ago
No, Answer is wrong. It is curved Upward.
So, B option is correct.
So, B option is correct.
Sachin said:
8 years ago
I think Option B is correct.
Sripad said:
8 years ago
Answer B is correct.
Brajesh pandey said:
8 years ago
In capillary depression of hg the shape of curve of hg inside tube is curved downward. So option "C" is correct.
Lalit said:
8 years ago
Curve is upward due to dominant force is cohesion in mercury. While downward in water, in which dominant is adhesion.
B GURUNATH said:
8 years ago
I think answer B is correct.
Because cohesion property is more than the adhesive property.
Because cohesion property is more than the adhesive property.
Abhinay said:
8 years ago
Wrong. Because of cohesive force is predominant here than adhesive force.
Mahrukh said:
7 years ago
It's curved downward. By curved downward they mean going to bottom from top. The curve's highest point is on top, so the curve goes downward from the top point.
Keshav said:
7 years ago
Mercury, for example, has a very large surface tension and a large contact angle with glass. When placed in a tube, the surface of a column of mercury curves downward, somewhat like a drop.
Aagaz said:
7 years ago
In the case of capillary fall, the contact angle always greater than 90°. Therefore answer should be (option b).
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