MCQOPTIONS
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MCQOPTIONS
| 1. |
A ray of light passes from vacuum into a medium of refractive index \[\mu ,\] the angle of incidence is found to be twice the angle of refraction. Then the angle of incidence is |
| A. | \[{{\cos }^{-1}}(\mu /2)\] |
| B. | \[2{{\cos }^{-1}}(\mu /2)\] |
| C. | \[2{{\sin }^{-1}}(\mu )\] |
| D. | \[2{{\sin }^{-1}}\,(\mu /2)\] |
| Answer» C. \[2{{\sin }^{-1}}(\mu )\] | |