MCQOPTIONS
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MCQOPTIONS
| 1. |
The speed of light in air is 3 × 108 m/s. If the refractive index of glass is 1.5, find the time taken by light to travel a distance of 10 cm in the glass. |
| A. | 0.5 × 10-10 s |
| B. | 5 × 10-10 s |
| C. | 50 × 10-10 s |
| D. | 500 × 10-10 s |
| Answer» C. | |