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A soap bubble in vacuum has a radius of ...

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 conditions then the radius of the new bubble is :

A

`2.3 cm`

B

`4.5 cm`

C

`5 cm`

D

`7 cm`

Text Solution

Verified by Experts

The correct Answer is:
C
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