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Activity: Magnification, the eye and aberrations

Let"s get up close and personal as you come to understand how the eye changes focus. The concept of "angle subtended" and the principle of magnification by a magnifying glass will also be covered, before calculating angular magnification and describing why a small aperture reduces spherical aberration. Astronomers, you will want to take note of the origin of chromatic aberration and how combining lenses can reduce it.

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