A) \[135{}^\circ \]
B) \[90{}^\circ \]
C) \[120{}^\circ \]
D) \[180{}^\circ \]
Correct Answer: A
Solution :
[a] For\[I=\frac{{{I}_{0}}}{2}\] and \[I={{I}_{0}}{{\cos }^{2}}\theta =\frac{{{I}_{0}}}{2}\] \[\therefore \,\,\theta ={{45}^{o}}\] Therefore the angle through which either polaroids turned is \[135{}^\circ (=180{}^\circ -45{}^\circ )\]
You need to login to perform this action.
You will be redirected in
3 sec
