Recent content by Jonforall

  1. Jonforall

    Must we always use absolute value for lens magnification?

    Thanks
  2. Jonforall

    Must we always use absolute value for lens magnification?

    So should we always use absolute value in answering every problem that tells us to find height of image and its magnification?
  3. Jonforall

    Must we always use absolute value for lens magnification?

    My brother's physics teacher says that magnification and height of image are always positive. Is she right?