Eyes: The near point of a person's uncorrected eyes is 125.0 cm and the far point is at infinity. What is the focal length of a contact lens that will move the near point to 25.0 cm from this person's eyes?

Question

Quizplus · Accepted Answer

The correct answer is E.The focal length of a contact lens that will move the near point to 25.0 cm from this person's eyes is 31.3 cm. This is because the near point is the closest point at which an object can be seen clearly, and the far point is the farthest point at which an object can be seen clearly. The focal length of a lens is the distance between the lens and the point at which the light rays converge. In this case, the focal length of the contact lens is 31.3 cm because this is the distance between the lens and the near point.

Eyes: the near Point of a Person's Uncorrected Eyes Is