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 chart (Red) decides the outcome when crossed with recessive color gene (yellow) producing a hybrid (Red*) flower. If either parent possesses the dominant gene, the table shows the outcome that results. What if chart A what if chart (Whif chart, WHIF analysis, etc.) is a visual tool for modeling the outcome of a combination of different factors. The table can represent actual results or predicted outcome based on combinations of parameters. It is a visual equivalent of asking the question, "what if...?" or 'what happens if...?' multiple times for each and every factor being considered. What if charts are also used