Question

The critical angle for total internal reflection for a substance is ${45}^{\circ }$. The polarizing angle for this substance is ($\tan {54}^{\circ }{44}^{\prime }=\sqrt{2}$) :

• A. ${46}^{\circ }{16}^{\prime }$
• B. ${54}^{\circ }{44}^{\prime }$
• C. ${46}^{\circ }{44}^{\prime }$
• D. ${54}^{\circ }{16}^{\prime }$

Answer 1

The correct option is B ${54}^{\circ }{44}^{\prime }$

If polarizing angle is $\theta$
Then tan $\theta =\frac{1}{sinc}$
$tan\theta =\frac{1}{sin45}=\sqrt{2}$
$\theta ={54}^0{44}^{\prime }$