A soap bubble of radius 25 mm has inside pressure 25 N/m2 above atmosp – McqOptions

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1.	A soap bubble of radius 25 mm has inside pressure 25 N/m2 above atmospheric pressure. The surface tension in the soap film will be:
A.	0.156 N/m
B.	2.156 N/m
C.	0 N/m
D.	1.156 N/m
Answer» B. 2.156 N/m

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