(a) 1 : 3 (b) 1 : 9 (c) 27 : 1 (d) 1 : 27 Ans. d (4)
30. The excess pressure in a soap bubble is thrice that in other one. Then the ratio of their volume is
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- 30. The excess pressure in a soap bubble is thrice that in other one. Then the ratio of their volume is