A) 1.43°
B) 1.56°
C) 2.86°
D) 30°
Correct Answer: C
Solution :
For constructive interference, we must have $2d\sin \theta =n\lambda $ $\sin \theta =\frac{n\lambda }{2d}=\frac{1\times 0.3\times {{10}^{-10}}}{2\times 0.3\times {{10}^{-9}}}$$=0.05\,rad$ \[=\frac{0.05\times 180}{\pi }={{2.86}^{o}}\]You need to login to perform this action.
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