MCQOPTIONS
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MCQOPTIONS
| 1. |
The angle of polarisation for any medium is \[60{}^\circ \]The critical angle for this is |
| A. | \[{{\sin }^{-1}}\frac{1}{\sqrt{3}}\] |
| B. | \[{{\cos }^{-1}}\sqrt{3}\] |
| C. | \[{{\sin }^{-1}}\sqrt{3}\] |
| D. | \[{{\tan }^{-1}}\sqrt{3}\] |
| Answer» B. \[{{\cos }^{-1}}\sqrt{3}\] | |