A 20 {\cm} length of a certain solution causes right handed rotation of 38^{\circ}. A 30 {\cm} length of another solution causes left handed rotation of 24^{\circ}. The optical rotation caused by 30 {\cm} length of a mixture of the above solutions in the volume ratio 1: 2 is

Correct Answer is : right handed rotation of 30

KCET 2007 Physics Solved Paper

Question : 12 of 60

Marks: +1, -0

A 20‌cm length of a certain solution causes right handed rotation of 38∘. A 30‌cm length of another solution causes left handed rotation of 24∘. The optical rotation caused by 30‌cm length of a mixture of the above solutions in the volume ratio 1:2 is

right handed rotation of 30
left handed rotation of 30
right handed rotation of 140
left handed rotation of 140

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