A) \[3{{\lambda }_{1}}=0.3{{\lambda }_{2}}\]
B) \[3{{\lambda }_{1}}={{\lambda }_{2}}\]
C) \[{{\lambda }_{1}}=3.5{{\lambda }_{2}}\]
D) \[0.3{{\lambda }_{1}}=3{{\lambda }_{2}}\]
Correct Answer: C
Solution :
Position of first minima = position of third maxima i.e., \[\frac{1\times {{\lambda }_{1}}D}{d}=\frac{\left( 2\times 3+1 \right)}{2}\frac{{{\lambda }_{2}}D}{d}\,\,\Rightarrow \,{{\lambda }_{1}}=3.5{{\lambda }_{2}}\]You need to login to perform this action.
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