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The capacities of two hemispherical vessels are 6.4 litres and 21.6 litres. The areas of inner curved surfaces of the vessels will be in the ratio of `sqrt(2)\ :sqrt(3)` (b) 2 : 3 (c) 4 : 9 (d) 16 : 81

A

`4:9`

B

`2:3`

C

`sqrt2:sqrt3`

D

`16:81`

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