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| Q. |
For a ray of light to suffer total internal reflection it has to pass from – |
| A. | glass to water |
| B. | water to glass |
| C. | air to water |
| D. | air to glass |
| Answer» C. air to water | |
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Explanation: Total internal reflection is an optical phenomenon that happens when a ray of light strikes a medium boundary at an angle larger than a particular critical angle with respect to the normal to the surface. |
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