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An object 5 cm long and a pencil 10 cm long are placed in front of a pinhole camera such that their images have the same length.Find the ratio of the distances of object from the pinhole to that of the pencil? |
| Answer» An object 5 cm long and a pencil 10 cm long are placed in front of a pinhole camera such that their images have the same length.Find the ratio of the distances of object from the pinhole to that of the pencil? | |