MCQOPTIONS
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| 1. |
Periscope works on the principle of multiple reflections. It consists of two or more mirror, used for the reflection. If the two mirrors are placed at an angle of 90°, how many images of the object are formed between them? |
| A. | One |
| B. | Two |
| C. | Three |
| D. | Four |
| E. | None of these |
| Answer» D. Four | |