Question

what is lens makers law

Answer 1

Answer:

Lenses. Lens Maker's Formula. Using the positive optical sign convention, the lens maker's formula states. where f is the focal length, n is the index of refraction, and and are the radii of curvature of the two sides of the lens.

Answer 2

Answer:

$\frac{1}{f}$=(n2-n1){$\frac{1}{r1}$ - $\frac{1}{r2}$}

Explanation:

it is an expression for the power of a lens and it is used to manufacture lenses.