The focal length of a relaxed human eye is approximately 1.86 cm. When we focus our eyes on a close-up object, we can change the refractive power of…

The focal length of a relaxed human eye is approximately 1.86 cm. When we focus our eyes on a close-up object, we can change the refractive power of the eye by about 18 diopters. Calculate the focal length of the eye when we focus closely.
The focal length of a relaxed human eye is approximately 1.86 cm. When we focus our eyes ona close-up object, we can change the refractive power of the eye by about 18 diopters.Calculate the…