If the surface tension of a soap solution is $0.03\, MKS$ units, then the excess of pressure inside a soap bubble of diameter $6 \,mm$ over the atmospheric pressure will be
If the surface tension of a soap solution is $0.03\, MKS$ units, then the excess of pressure inside a soap bubble of diameter $6 \,mm$ over the atmospheric pressure will be
- A
Less than $40\, N/m^2$
- B
Greater than $40\, N/m^2$
- C
Less than $20\, N/m^2$
- D
Greater than $20 \,N/m^2$
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