A) 1.30
B) 1.36
C) 1.42
D) 1.46
Correct Answer: B
Solution :
As optical paths are equal, hence \[{{n}_{g}}.{{x}_{g}}={{n}_{w}}.{{x}_{w}}\] \[\Rightarrow \] \[{{n}_{w}}={{n}_{g}}.\frac{{{x}_{g}}}{{{x}_{w}}}\] \[=1.53\times \frac{4.0}{4.5}\] \[=1.36\]You need to login to perform this action.
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