define focus , principal axis , radius of curvature....
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The distance between the centre of curvature and pole (PC) is known as the radius of curvature.
Principal axis of the spherical mirror
The straight line joining the pole (P) and the centre of curvature (C) is termed as the principal axis.
Principal axis of the spherical mirror
The straight line joining the pole (P) and the centre of curvature (C) is termed as the principal axis.
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Focus: It is a point on principal axis from which, the light rays incident parallel to the principal axis, appear to come after the reflection.
Principal axis: It is the straight line joining the pole of the mirror to its center of curvature.
Radius of curvature: The radius of sphere of which the spherical mirror is a part, is called the radius of curvature of mirror.
Principal axis: It is the straight line joining the pole of the mirror to its center of curvature.
Radius of curvature: The radius of sphere of which the spherical mirror is a part, is called the radius of curvature of mirror.
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