Hello,
Force acting on a circular disc placed on the surface of water is given by, F = Surface tension * circumference of circular disc. (Equation 1)
Here, Surface tension = 8t dyne/cm
Circumference = 2 * pie * radius = 10 * pie
Substituting the value obtained above in equation 1, we get:
F = 8t * 10 * pie = 80t * pie dyne
F = 80t * pie dyne (Answer)
Question : Which of the following statements is not correct about surface tension?
Question : A conical vessel, whose internal radius is 20 cm and height is 27 cm, is full of water. If this water is poured into a cylindrical vessel with an internal radius of 15 cm, what will be the height to which the water rises in it?
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