The excess pressure inside a soap bubble of diameter 2 cm of soap solution of surface tension
The excess pressure inside a soap bubble of diameter 2 cm of soap solution of surface tension
A. `100 N//m^(2)`
B. `10 N//m^(2)`
C. `1 N//m^(2)`
D. `0.1 N//m^(2)`
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Correct Answer - B
` (4T)/R = Delta P, (4 xx 25 xx 10^(-3)N//m)/(1xx 10^(-2)m)`
` = 100 xx 10^(-3) xx10^(2) " N/m"^(2)`
` = 10 " N/m"^(2)`
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