A) 983 Pa
B) 1070 Pa
C) 1083 Pa
D) 1130 Pa
E) 1134 Pa
Correct Answer: D
Solution :
Let the atmospheric pressure is\[{{p}_{0}}.\] The just outside the bubble and inside the water \[p={{p}_{0}}+\rho \,gh\] Also, pressure inside the bubble \[p=p+\frac{2\,s}{r}={{p}_{0}}+h\,\rho \,g+\frac{2s}{r}\] \[\Rightarrow p-{{p}_{0}}=(10\,cm)\,(1000\,kg{{m}^{-3}})\,(9.8\,m{{s}^{-2}})\]\[+\frac{2\times 0.075\,N{{m}^{-1}}}{10\times {{10}^{-3}}m}\] \[=980\,N{{m}^{-2}}+150\,N{{m}^{-2}}=1130\,Pa\]You need to login to perform this action.
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