Department of Pre-University Education, KarnatakaPUC Karnataka Science Class 12

Refraction at Spherical Surfaces and Lenses - Combination of Thin Lenses in Contact

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  • Equivalent lens (Two thin lenses placed in contact)
  • Combination of a lens and a mirror:
    ⇒ Effect of silvering, one of the refracting surfaces of a lens
  • Defects in lenses
    1) Chromatic aberration
    2) Spherical aberration
    ⇒ Methods to reduce spherical aberrations in lenses
    3) Coma
    4) Curvature
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