A soap bubble in vacuum has a radius of 3 cm and another soap bubble i – McqOptions

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1.	A soap bubble in vacuum has a radius of 3 cm and another soap bubble in vacuum has a radius of 4 cm. If the two bubbles coalesce under isothermal condition, then the radius of the new bubble is [MP PMT/PET 1998; JIPMER 2000]
A.	2.3 cm
B.	4.5 cm
C.	5 cm
D.	7 cm
Answer» D. 7 cm

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