MCQOPTIONS
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| 1. |
DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 2 You can make a simple periscope by placing two mirrors in a 'Z' shaped box as shown in figure below. Periscope is advice |
| A. | used in U-boats |
| B. | that makes use of reflection of light |
| C. | Both the above |
| D. | None of these |
| Answer» D. None of these | |