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58.A small object is 10 cm in front of a plane mirror.A man stands 30cm from the mirror,behind the object and looks at the object's image.At what distance should he focus his eyes to see the image? |
| Answer» 58.A small object is 10 cm in front of a plane mirror.A man stands 30cm from the mirror,behind the object and looks at the object's image.At what distance should he focus his eyes to see the image? | |