A) \[{{\sin }^{-1}}\,(0.33\,\,\times \,\,{{10}^{8}})\]
B) \[{{\sin }^{-1}}\,(0.33\,\,\times \,\,{{10}^{-6}})\]
C) \[{{\sin }^{-1}}\,(3\,\,\times \,\,{{10}^{8}})\]
D) \[{{\sin }^{-1}}\,(3\,\,\times \,\,{{10}^{-6}})\]
Correct Answer: D
Solution :
Using relation, \[d\,\sin \,\theta \,\,=\,\,n\lambda \,\Rightarrow \,\sin \,\theta \,\,=\,\frac{n\lambda }{d}\] \[n=3,\,\,\sin \,\theta \,=\,\,\frac{3\lambda }{d}\,=\,\,\frac{3\times 589\times {{10}^{-9}}}{0.589}\] \[=3\times 1{{0}^{-6}}\,\,or\,\,\,\,\theta \,\,=\,\,si{{n}^{-1}}\,(3\times 1{{0}^{-6}})\]
You need to login to perform this action.
You will be redirected in
3 sec
