A) \[2\times {{10}^{-3}}rad~\]
B) \[3\times {{10}^{-3}}rad\]
C) \[1.8\times {{10}^{-3}}rad~~~\]
D) \[6\times {{10}^{-3}}rad\]
Correct Answer: A
Solution :
Given, \[\lambda =6000{\AA}=6000\times {{10}^{-10}}m\] and \[n=0.3mm=0.3\times {{10}^{-3}}m\] \[0.3\times {{10}^{-3}}\times \sin \theta =6000\times {{10}^{-10}}\] \[\sin \theta =2\times {{10}^{-3}}\]or\[\theta =2\times {{10}^{-3}}\text{rad}\]You need to login to perform this action.
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