# What is the ratio of object distance to image distance in case of a concave mirror when its magnification is 0.5?

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What is the ratio of object distance to image distance in case of a concave mirror when its magnification is 0.5?

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As m=(h_(2))/(h_(1))= (-v)/(u)=0.5=(1)/(2) :. (u)/(v)=2 , ignoring negative sign.