A) \[0.25\text{ }mm\]
B) \[0.1\text{ }mm\]
C) \[0.5\text{ }mm\]
D) \[0.025\text{ }mm\]
Correct Answer: A
Solution :
Fringe width \[\beta =\frac{\lambda D}{d}\] \[=\frac{(5000\times {{10}^{-10}})\times 1}{2\times {{10}^{-3}}}\] \[=2500\times {{10}^{-7}}m\] \[=0.25\,mm\]You need to login to perform this action.
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