Question

what is the use of lense maker formula?

Answer 1

 For various optical instruments, lenses of different focal lengths are used. Focal length of a lens depends upon radii of curvatures of two surfaces and refractive index of the lens material. Lens maker's formula is used by lens manufacturers for making lenses of desired focal lengths.

Answer 2

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$\color{Blue}{LENSE MAKER FORMULA :- }$

★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.

$\underline{ USE OF IT ARE :- }$

For various opticalinstruments, lenses of different focal lengths are used. Focal length of a lens depends upon radii of curvatures of two surfaces and refractive index of the lens material. Lens maker's formula is used by lens manufacturers for making lenses of desired focal lengths.

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