A) \[0.095{}^\circ \]
B) \[0.302{}^\circ \]
C) \[3{}^\circ \]
D) \[0.85{}^\circ \]
E) \[0.225{}^\circ \]
Correct Answer: A
Solution :
Deviation of red light is\[{{\delta }_{r}}=({{\mu }_{r}}-1)A\] and deviation of violet light is \[{{\delta }_{v}}=({{\mu }_{v}}-1)A\] The dispersion\[={{\delta }_{v}}-{{\delta }_{r}}=({{\mu }_{v}}-{{\mu }_{r}})A\] \[=1.632-1.613=0.095{}^\circ \]
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