Long sight (more about the eye) 3.0 / 5 based on 1 rating ? PhysicsLight and OpticsGCSEAQA Created by: CharCreated on: 20-05-13 18:36 What objects can a person with long sight see clearly? Distant objects 1 of 6 Why are close objects blurred? Because the uncorrected image is formed BEHIND the retina 2 of 6 How is long sight caused? By the eyeball being too short or the eyes lens being too weak 3 of 6 How can long sight be corrected? Using a converging lens 4 of 6 What is the focal length determined by? Refractive index of material from which the lens is made and the curvature of the two surfaces of the lens 5 of 6 The greater the refractive index of the lens material of a lens with a given focal length... The flatter and thinner the lens can be manufactured 6 of 6
Comments
No comments have yet been made