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Thread: focal length of the convex mirror

  1. #1 focal length of the convex mirror 
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    # A convex lens forms a real image of a point object placed at a distance of 0.5 m from it. The image is also at a distance of 0.5 m from the lens. Midway between the lens and the image, a convex mirror is placed. It is found that there is no parallax between the object and its image. What is the focal length of the convex mirror?


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  3. #2  
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    Ask any optometrist or avid photographer?


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