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If a soap bubble of radius 3 cm coalesce...

If a soap bubble of radius 3 cm coalesce with another soap bubble of radius 4 cm under isothermal conditions the radius of the redultant bubble formed is in cm

A

7

B

1

C

5

D

12

Text Solution

Verified by Experts

The correct Answer is:
C
`r=sqrt(r_(1)^(2)+r_(2)^(2))`
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Knowledge Check

  • A soap bubble of radius 6 cm and another bubble of 8 cm coalesce under isothermal xonditions in vacuum. The radius of the new bubble is

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