The following observation were taken for detrmining surface tension T of water by capillary rise method. Diameter of the capillary is D=1.25×10−2m
rise of water, h=1.45×10−2m
Using g=9.80m/s2 and the simplified relation T=2rhg×103N/m, the possible error in T=(rhg2)103 N/m, the possible percentage error in surface tension is closest to :