Ray optics part-1

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1.
Reflection
2.
Optical-Medium
3.
Transparent-Medium
4.
Translucent-Medium
5.
Opaque-Medium
6.
Laws-of-Reflection
7.
Plane-Mirror
8.
Image-Characteristics
9.
Spherical-Mirror
10.
Convex-Mirror
11.
Concave-Mirror
12.
Pole
13.
Centre-of-Curvature
14.
Radius-of-Curvature
15.
Principal-Axis
16.
Principal-Focus
17.
Focal-Length
18.
Magnification
19.
Mirror-Formula
20.
Spherical-Aberration
21.
Paraboloidal-Mirror