Write sign convention for the parameters related to the mirror equation.
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The +/- Sign Conventions
The sign conventions for the given quantities in the mirror equation and magnification equations are as follows: f is + if the mirror is a concave mirror. f is - if the mirror is a convex mirror. di is + if the image is a real image and located on the object's side of the mirror.
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1.All distances should be measure from the pole.
2.The distances measured in the direction of incedent light,to be taken positive and those measured in the direction opposite to incident light to be taken negative.
3.Height of object(ho)and height of image(hi)are positive if measured upwards from the axis and negative if measured downwards.
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