A certain length of 50% solution produce...

A certain length of 50% solution produces an optical rotation of `20^(@).` How much length of 10% solution of the same substance will produce a rotation of `30^(@)`

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A 300 mm long tube containing 60 cm^(3) of sugar solution produces an optical rotations of 10^(@) when placed in a saccharimeter. If specific rotation of sugar is 60^(@) calculate the quantity of sugar constained in te tube solution.

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