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प्रश्न
Draw a neat and labeled ray diagram of a simple periscope. Give two uses of a periscope.
आकृति
टिप्पणी लिखिए
उत्तर
Periscope is used to see over the top of an obstacle. It is also used in submarines for observing for movement of ships. It can be used from the trenches for observing the movement on the surface of the earth.
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| A | B |
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| C | D |
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