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3.7 plan, choose equipment or resources and perform a first-hand investigation to model the process of accommodation by passing rays of light through convex lenses of different focal lengths

plan, choose equipment or resources and perform a first-hand investigation to model the process of accommodation by passing rays of light through convex lenses of different focal lengths

Background

A biconvex lens is shaped as shown in the diagram below. Convex lenses magnify images by causing rays of light to converge.

The lens in the human eye is a convex lens. When parallel rays of light are passed through a convex lens, they will converge at a point, known as the focal point.

The focal length of a lens is the distance of the focal point from the centre of the lens.

 

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Convex lens