State the formula relating object distance

PHYSICS · Subjective · CBSE · Physics · Light — Reflection and Refraction · Light — Reflection and Refraction

Problem

State the formula relating object distance, image distance and focal length for (i) a spherical mirror and (ii) a thin lens. How does the sign of the term involving the object distance differ between the two formulas?

Related theory

Mirror Equation
Mirror Formulae
Lens Formulae
Refraction
Waves
Image formation by lenses
Geometric Optics
Lenses

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