Real image (such as the images on the right), real rays of light are always represented by full, solid lines; perceived or extrapolated rays of light are represented by dashed lines. A real image occurs where rays converge, whereas a virtual image occurs where rays only "appear" to converge. Real images can be produced by concave mirrors and converging lenses, only if the object is placed further away from the mirror/lens than the focal point and this real image is inverted. As the object approaches the focal point the image approaches infinity, and when the object passes the focal point the image
What If (Ashley Tisdale song) What If (Ashley Tisdale song) "What If" is a song by Ashley Tisdale from her second studio album, "Guilty Pleasure". It was released on July 7, 2009 as part of an iTunes Store countdown in promotion for the album. This song was co-written by Tisdale, Kara DioGuardi and the Swedish production team Twin. Tisdale described "What If" as the most personal track on the album and said the song "is about when you’re in a relationship and you say 'If I really needed you, would you actually be there?’" It was released as part of the "Guilty Pleasure" countdown on