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Optics 2010 Question Paper For CBSE Class XII Exams

Optics

1. (i) Describe the optical imagery of convex lenses and draw diagrams.
   (ii) What is astigmatism? Describe and draw "Sturm's conoid"
2. Describe briefly the following:
   (i) Spherical and chromatic aberration in a thick glass
   (ii) Protective glasses : types and uses
3. Write short notes on the following :
   (i) Uses and advantages of lens combinations
   (ii) Types of bifocal lenses and advantages of each
   (iii) Types and materials of contact lens.