A soap bubble has radius 2 cm. the work done in bobbling the radius is (Surface tension is 30 dynes/cm).
(a) 9050 erg (b) 4525 erg
(c) 8050 erg (d) 3525 erg

Question

A soap bubble has radius 2 cm. the work done in bobbling the radius is (Surface tension is 30 dynes/cm). (a) 9050 erg (b) 4525 erg (c) 8050 erg (d) 3525 erg

Saurabh Koranglekar · Answer

Dear student The answer is option a Regards

Vikas TU · Answer

Dear student Please refer https://www.askiitians.com/forums/Engineering-Entrance-Exams/a-soap-bubble-has-radius-2-cm-the-work-done-in-bo_84670.htm

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A soap bubble has radius 2 cm. the work done in bobbling the radius is (Surface tension is 30 dynes/cm). (a) 9050 erg (b) 4525 erg (c) 8050 erg (d) 3525 erg

A soap bubble has radius 2 cm. the work done in bobbling the radius is (Surface tension is 30 dynes/cm).
(a) 9050 erg (b) 4525 erg
(c) 8050 erg (d) 3525 erg

2 Answers

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A soap bubble has radius 2 cm. the work done in bobbling the radius is (Surface tension is 30 dynes/cm). (a) 9050 erg (b) 4525 erg (c) 8050 erg (d) 3525 erg

A soap bubble has radius 2 cm. the work done in bobbling the radius is (Surface tension is 30 dynes/cm). (a) 9050 erg (b) 4525 erg (c) 8050 erg (d) 3525 erg

2 Answers

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A soap bubble has radius 2 cm. the work done in bobbling the radius is (Surface tension is 30 dynes/cm).
(a) 9050 erg (b) 4525 erg
(c) 8050 erg (d) 3525 erg