About the ads

  1. Check out PREMED.me!
    Offers FREE service to help premeds manage their applications and MCAT study calendars and identify schools to target.

Calculating magnification for Converging lens....

Discussion in 'MCAT Study Question Q&A' started by johnwandering, May 7, 2012.

  1. SDN is a nonprofit organization. Services are made possible through the generous support of SDN members and sponsors. Thank you.
  1. johnwandering


    May 18, 2009
    SDN 2+ Year Member

    SDN Members don't see this ad. (About Ads)
    I am quite confused how to do this, because of sign conventions.

    When an object s is on the left side of the lens, it is designated as positive.
    When an image s' is REAL, it is designated as positive.

    this would bring our magnification to
    m=s'/s, which is a positive value.

    But for converging lens, m should be a negative number.......


    Because h' is inverted, it should be a negative value... making m a negative value as well. But that would make our first equation impossible.

    What's up with this?
  2. EnginrTheFuture


    Nov 22, 2011
    Medical Student
    SDN 2+ Year Member

    There's quite the important negative sign missing in there :p

Share This Page

About the ads