focal length of the convex mirror

Discussion in 'Physics & Math' started by perfectionist, Jun 10, 2006.

  1. perfectionist Registered Senior Member

    Messages:
    32
    # 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?
     
  2. AntonK Technomage Registered Senior Member

    Messages:
    1,083
    I give up.... what is it?

    In other words, at least try to explain your reasoning, or attempted reasoning before posting your homework problems on a forum. You're new, we have no reason to believe this is anything other than attempting to get your homework answered for you. I sincerely hope no one helps you until you start to help yourself a bit.

    -AntonK
     

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