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24. The work done in blowing a soap bubble of 10 cm

radius is (Surface tension of the soap solution is (3/100) N/m)

(a)   75.36 x 10-4 joule

(b) 37.68 x 10-4 joule

(c) 150.72 x 10-4 joule

(d)  75.36  joule

Ans. a

(10)

5/5 - (1 vote)

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