A) Left handed rotation of 14°
B) Right handed rotation of 14°
C) Left handed rotation of 3°
D) Right handed rotation of 3°
Correct Answer: D
Solution :
As q µ l Volume ratio 1 : 2 in a tube of length 30 cm means 10 cm length of first solution and 20 cm length of second solution . Rotation produced by 10 cm length of first solution \[{{\theta }_{1}}=\frac{38{}^\circ }{20}\times 10=19{}^\circ \] Rotation produced by 20cm length of second solution \[{{\theta }_{2}}=-\frac{24{}^\circ }{30}\times 20=-16{}^\circ \] \ Total rotation produced = 19° ? 16° = 3°
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