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→About Convex Lenses
: A '''convex lens''' causes [[parallel]] [[Light Ray|rays]] of [[light]] to [[converge]], so it can also be called a [[Converging Lens|converging lens]].
: A '''convex''' [[lens]] is used to [[focus]] [[light]].
: Projecting an [[image]] onto a [[screen]] using a '''convex [[lens]]''' creates a [[Real Image|real image]]. Looking through a '''convex [[lens]]''' the [[image]] seen is a [[Virtual Image|virtual image]].
===Finding the Focal Length===