The capillary rise at 20°C in a clean glass tube of 1 mm bore containing water is ap-proximately
A. 5 mm
B. 10 mm
C. 20 mm
D. 30 mm
Answer: Option D
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Related Questions on Hydraulics and Fluid Mechanics
A. 22.5 m/sec.
B. 33 m/sec.
C. 40 m/sec.
D. 90 m/sec.
A. the weight of the body
B. more than the weight of the body
C. less than the weight of the body
D. weight of the fluid displaced by the body
The difference of pressure between the inside and outside of a liquid drop is
A. $${\text{p}} = {\text{T}} \times {\text{r}}$$
B. $${\text{p}} = \frac{{\text{T}}}{{\text{r}}}$$
C. $${\text{p}} = \frac{{\text{T}}}{{2{\text{r}}}}$$
D. $${\text{p}} = \frac{{2{\text{T}}}}{{\text{r}}}$$
A. cannot be subjected to shear forces
B. always expands until it fills any container
C. has the same shear stress.at a point regardless of its motion
D. cannot remain at rest under action of any shear force
Use formula Hc=4*sigma*cos(theta)/density*g*d
And put all the values with sigma=0.075N/m, you will get 30 mm