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CBSE Class 11-science Answered

When a capillary tube of diameter is 0.2mm dipped vertically in water the water raries 15cm find surface tension of water

 

Asked by mahimanaik290 | 10 May, 2020, 12:45: AM
Expert Answer
H e i g h t space o f space w a t e r space i n space c a p i l l a r y space t u b e space i s
h equals fraction numerator 2 T over denominator rho r g end fraction
T equals space s u r f a c e space t e n s i o n
rho equals d e n s i t y space o f space w a t e r
r equals r a d i u s space o f space c a p i l l a r y space t u b e
15 cross times 10 to the power of negative 2 end exponent equals fraction numerator 2 T over denominator 1000 cross times 0.1 cross times 10 to the power of negative 3 end exponent cross times 10 end fraction
A s space p e r space t h e space q u e s t i o n space t h e space s u r f a c e space t e n s i o n space o f space w a t e r space i s
T equals 7.5 cross times 10 to the power of negative 2 end exponent N divided by m
Answered by Utkarsh Lokhande | 10 May, 2020, 11:07: AM
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