The capillary rise at 20°C in a clean glass tube of 1 mm bore containing water is ap-proximately_______________?
A. 1 mm
B. 5 mm
C. 10 mm
D. 20 mm
E. 30 mm
A. 1 mm
B. 5 mm
C. 10 mm
D. 20 mm
E. 30 mm