Question

Write any lens makers formula​

Answer 1

Explanation:

1f=(n−1)(1R1−1R2) where f is the focal length of the mirror, n is the refractive index, R1 is the radius of curvature of the lens surface closer to the light source, R2 is the radius of curvature of the lens surface farther from the light source.

Answer 2

Answer:

1f=(n−1)(1R1−1R2) where f is the focal length of the mirror, n is the refractive index, R1 is the radius of curvature of the lens surface closer to the light source, R2 is the radius of curvature of the lens surface farther from the light source.