A beaker of radius 10 cm is filled with water calculate the force of surface tension on any diametrical line on its surface S.T of water is 0.075 N/m
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Explanation:
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GIVEN:
Radius of the beaker = 10cm
Surface Tention of water = 0.075 N/m
TO FIND:
Calculate the force of surface tension.
SOLUTION:
To find the force, we will be using the formula for surface tension = Force/ length (f/l)
- Surface tension is nothing but the force required to increase the surface area of the liquid with respect to unit area.
If Surface tension = f/l
Then, the force acting on the diametrical line will be
F = S × l
where,
S = 0.075 N/m
l = 10 × 2 = 20 cm
= 20/100 = 0.2m
F = 0.075 × 0.2
= 0.015N
or
Thus, the force of surface tension on any diametrical line on its surface S.T of water is 0.075 N/m =
1.5 × 10^-2 N
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