Force necessary to pull a circular plate of 5 cm radius from water surface for which surface tension is 75 dynes/cm, is - VgyanHub

Question:

3.Force necessary to pull a circular plate of 5 cm radius from water surface for which surface tension is 75 dynes/cm, is

Options :

a) 30 dyne
b) 60 dynes
c) 750 dynes
d) 750 πdynes

Answer :

d) 750 πdynes

Answer Steps :

Solution :-

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