Question

What is Lens formula and Mirror formula? ​

Answer 1

$\huge\bf{Answer:-}$

1/v+1/u=1/f is Mirror formula.

1/v-1/u=1/f is Lens formula.

Refer the attachment.

Answer 2

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$\huge\boxed{ANSWER}$

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Focal length =f

Distance between object and lens/mirror = u

Distance between image and lens/mirror = v

Lens Formula

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

Mirror Formula

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