MCQOPTIONS
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MCQOPTIONS
| 1. |
If the signal is transmitted from an optical fibre core of Refractive Index (RI) \[\sqrt{\frac{12}{5}}\] to an another optical fibre with RI of core and cladding as 1.8 and 1.2 respectively, then the maximum angle of acceptance for 2nd optical fibre is |
| A. | \[30{}^\circ \] |
| B. | \[45{}^\circ \] |
| C. | \[60{}^\circ \] |
| D. | \[{{\sin }^{-1}}\left( \frac{2}{\sqrt{3}} \right)\] |
| Answer» D. \[{{\sin }^{-1}}\left( \frac{2}{\sqrt{3}} \right)\] | |