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If a small air bubble of radius 0.1 mm is formed just below the surface of water, then the pressure inside the air bubble will be

A

`14 xx 10^(4) N//m^(2)`

B

`1.014 xx 10^(5)N//m^(2)`

C

` 1.014 xx 10^(6) N//m^(2)`

D

`1.14 xx 10^(-5)N//m^(2)`

Text Solution

Verified by Experts

The correct Answer is:
B
` P = P_(0) + (2T)/r = 10^(5) + (2 xx 0.07)/(10^(-4))`
` = 1.014 xx 10^(5)" N/m"^(2)`
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NIKITA PUBLICATION-SURFACE TENSION-Multiple Choice Questions (Excess pressure due to surface tension )
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