write the sign conventions used for mirrors
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refer page number 168 of ncert book
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Sign Convention for Reflaction by Spherical Mirrors use the pole of the mirror as Origin. The principal axis of the mirror is taken as the x-axis of the coordinate system.
✔️ The object is always placed to the left of the mirror.
✔️ All distance parallel to the principal axis are measured from the pole of the mirror.
✔️ All the distance measured to the right of the orgin are taken as positive while those measured to the left of the origin is taken as negative.
✔️ Distances measured perpendicular to and above the principal axis are taken as positive.
✔️ Distance measured perpendicular to and below the principal axis are taken as negative.
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