Alcohol of density ` 8 xx 10^(4) kg//m^(3)` and surface tension ` 22 xx 10^(-3)` N/m rises through a capillary tube of diameter ` 0.4 xx 10^(-3)` m .
Alcohol of density ` 8 xx 10^(4) kg//m^(3)` and surface tension ` 22 xx 10^(-3)` N/m rises through a capillary tube of diameter ` 0.4 xx 10^(-3)` m . The vertical height to which the alcohol will rise is ,
A. `28 xx 10^(-4)`,m
B. `2.8 xx10^(-4)`
C. `0.28xx10^(-4)`m
D. `0.28xx10^(-4)`m
4 views
1 Answers
Correct Answer - B
` h = (2T cos theta )/(rho gr)`
` = (2xx22xx10^(-3)xx1)/(8 xx10^(+4)xx10xx2xx10^(-4))= 2.8 xx10^(-4)` m
4 views
Answered