A) \[1\times {{10}^{-6}}m\]
B) \[5.2\times {{10}^{-}}^{6}m\]
C) \[1.3\times {{10}^{-}}^{6}m\]
D) \[26\times {{10}^{-}}^{6}m\]
Correct Answer: C
Solution :
\[d\sin \theta =n\lambda \] \[d=\frac{n\lambda }{\sin \theta }\] \[=\frac{1\times 6500\times {{10}^{-10}}}{\left( \frac{1}{2} \right)}\] \[=1.3\times {{10}^{-6}}m\]
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