A) 630 nm
B) 500 nm
C) 420 nm
D) 750 nm
Correct Answer: C
Solution :
Here \[{{X}_{3}}={{X}_{5}}\] \[\frac{3D\lambda }{2d}=\frac{5D\lambda }{2d}\] \[\Rightarrow \]\[3\lambda =5\lambda \] or \[\frac{\lambda }{\lambda }=\frac{3}{5}\] \[\lambda =\frac{3}{5}\times 700nm=420nm\]You need to login to perform this action.
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