define following terms with respect to spherical mirror. 1. spherical mirror. 2. center of curvature. 3. radius of curvature. 4.principle axis. 5. principle focus on convex mirror. 6. principle focus on concave mirror. 7. aperture . 8.focal length
Answers
Answer:
1) A spherical mirror is a mirror whose reflecting surface is the part of a hollow sphere
2) The center of curvature is the center of the hollow sphere of glass of which the mirror is a part
3) The radius of the hollow sphere of glass of which the mirror is a part
4) The straight line passing through the center of curvature and pole of a mirror
5) A point on the principle axis from which a beam of light rays, initially parallel to the axis appear to diverge after being reflected
6) A point on the principle axis from which a beam of light rays, initially parallel and close to the axis which converge after being reflected.
7) Aperture: The diameter of the circular boundary of the lens is called the aperture of the lens.
8)Focal length is the distance between the center of a convex lens or a concave mirror and the focal point of the lens or mirror — the point where parallel rays of light meet, or converge.
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