Properties Of Solids And Liquids Question 363

Question: The work done in blowing a soap bubble of radius 0.2 m is (the surface tension of soap solution being 0.06 N/m)[Pb. PET 2002]

Options:

A) 192π×104J

B)280π×104J

C) 200π×103J

D) None of these

Show Answer

Answer:

Correct Answer: A

Solution:

W=8πr2×T=8π×(0.2)2×0.06=192π×104J



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