A) 1.5
B) 4.16
C) 2.25
D) 1.73
Correct Answer: D
Solution :
From Snells law \[\mu =\frac{\sin i}{\sin r}\] Given, \[i+r={{90}^{o}}\Rightarrow r={{90}^{o}}-i\] \[\therefore \] \[\mu =\frac{\sin i}{\sin ({{90}^{o}}-i)}=\tan i\] Given, \[i={{60}^{o}},\]therefore \[\mu =\tan {{60}^{o}}=\sqrt{3}=1.73\]You need to login to perform this action.
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