According to the new cartesian sign convention, the ________ is taken as origin

Centre of curvature

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Pole of the mirror

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Focus

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Any point on the principal axis

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Solution

The correct option is B Pole of the mirror
According to the new cartesian sign convention, pole of the mirror is taken as the origin. All the measurements of object distance, image distance and the focal length are recorded from the pole of mirror. All measurements are positive in the direction of incident rays whereas that and its opposite measurements are taken as negative.

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