A) \[\omega [1-\alpha \Delta T]\]
B) \[\omega [1+2\alpha \Delta T]\]
C) \[\omega [1+2\alpha \Delta T]\]
D) \[P+Q+R+S\]
Correct Answer: C
Solution :
(c.)Since the radius of the bubble becomes double on reaching surface, its volume becomes 8 times. It means the pressure at the bottom of the lake is 8 times the pressure at surface. Therefore pressure due to depth of lake \[{{\left( \frac{a}{b} \right)}^{2}}\] \[{{\left( \frac{a}{b} \right)}^{3}}\] Thus, depth of the lake \[2\pi \sqrt{\frac{{{a}^{2}}}{3G\lambda }}\] .
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