Optics

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Chapter 3: Optics (7 videos)
3.1: Focal length of lens
  1. Find focal length of a convex lens by displacement method
  2. Find focal length of a concave lens using Concave mirror
  3. Find focal length of a concave lens using Convex lens
3.2: Wavelength of sodium light
  1. To set up a telescope
3.3: Refractive Index
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