Question
State the relation between object distance, image distance and focal length of a spherical mirror (concave mirror or convex mirror).
✓
Answer
$\frac{1}{\text{image distance}}+\frac{1}{\text{object distance}}=\frac{1}{\text{focal lenght}}$
Or
$\frac{1}{\text{v}}+\frac{1}{\text{u}}=\frac{1}{\text{f}}$
v = distance of image from mirror.
u = distance of object from mirror.
f = focal length of mirror.
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