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Define relation between the focal length and radius of curve line |
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Answer» The relation between focal length (f) and RADIUS of curvature (R) of a spherical mirror is that the focal length is equal to half of the radius of curvature i.e. f=R2. ... SINCE this mirror is PART of a CIRCLE, the normal drawn to the surface of the circle passes through the CENTRE (C) of the mirror. |
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