A) \[60{}^\circ \]
B) \[30{}^\circ \]
C) \[25{}^\circ \]
D) \[54.74{}^\circ \]
Correct Answer: B
Solution :
Refractive index, \[\mu =\tan \theta =\sqrt{2}\] Now according to Snells law \[\sqrt{2}=\frac{\sin (54.74)}{\sin r}\] \[\sin r=\frac{0.816}{\sqrt{2}}\] \[sin\text{ }r=0.57\] \[r={{35}^{o}}\simeq {{30}^{o}}\]
You need to login to perform this action.
You will be redirected in
3 sec
