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14 Cards in this Set
- Front
- Back
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Reflection of light |
Bouncing back light same medium - strikes polished surface |
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Laws of reflection |
Angle i = angle r R ray, I ray & n ray lie at point of inscidence |
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Normal incidence |
Retrace its own path R ray & I ray will overlap Angle I = angle r |
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Spherical mirrors |
Reflecting surface are spherical |
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Types of spherical mirrors |
Concave Convex |
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Concave mirror |
Reflecting surface Curved inwards Faces towards center of sphere |
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Convex mirror |
Reflecting surface curved outwards Polished towards center |
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Terminologies associated with spherical mirrors |
Center of curvature Pole Radius of curvature Principle axis Focus Focal length Aperture |
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Center of curvature |
reflecting surface of spherical mirrors forms a part of sphere. its center is called center of curvature |
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Pole |
Mid point of mirror |
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Radius of curvature |
Line joining center of curvature & pole |
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Principle axis |
Straight line passing through center of curvature & pole |
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Focus |
Light ray coming parallel to principle axis, after reflection passes or appears to pass through a point called as focus |
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Focal length |
Distance between F & P |
