A) 0.576
B) 0.348
C) 0.192
D) 0.096
Correct Answer: C
Solution :
Slit width, \[w=\frac{D\lambda }{d}\] Given,\[D=80\text{ }cm=80\times {{10}^{-2}}m,\] \[\lambda =6000{A}\text{ }=6000\times {{10}^{-10}}m,\] \[d=\frac{5}{2}mm=\frac{5\times {{10}^{-3}}}{2}m\] \[\therefore \] \[w=\frac{80\times {{10}^{-2}}\times 6000\times {{10}^{-10}}\times 2}{5\times {{10}^{-3}}}\] \[w=0.192\times {{10}^{-3}}m=0.192\text{ }mm\]You need to login to perform this action.
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