Question

lesson of mirror chepter​

Answer 1

Explanation:

Focal lenght (f)

is a distance between pole and princial focus of a mirror

image distance (v)

is a distance between pole and where the image is formed

object distance (u)

is a diatance between pole and object

$\frac{1}{f} = \frac{1}{v} + \frac{1}{u}$

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