A soap bubble of surface tension 0.04 N \/ m is blown to a diameter of 7 cm . If (15000-x) \mu J of work is done in blowing it further to make its diameter 14 cm , then the value of x is \_\_\_\_。 (\pi=22 \/ 7) [24 Jan 2026 Shift 2]

Properties of Matter Part 3

Section: Physics

Question : 2 of 92

Marks: +1, -0

A soap bubble of surface tension 0.04N∕m is blown to a diameter of 7 cm . If (15000−x)µJ of work is done in blowing it further to make its diameter 14 cm , then the value of x is ____。
(π=22∕7)

[24 Jan 2026 Shift 2]

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