Optics

Mirror Equation

1f=1do+1di\frac{1}{f} = \frac{1}{d_o} + \frac{1}{d_i}

Relates focal length to object and image distances for spherical mirrors.

Variables

f
Focal length
m
d_o
Object distance
m
d_i
Image distance
m

Derivation

Derived using similar triangles formed by rays reflecting off a curved mirror surface.

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