An object is moved closer to an eye. What changes must take place in the eye in order to keep the image in Sharp focus?
Answers
If we are thorough in knowledge about the properties of reflection and refraction properties of light, then we should also understand how the human eye works.
The human eye consists of cornea, rod and cones, ciliary muscles and other important aspects.
If we focus on an object that is already very distant from us, then the eye lens becomes quite thin and stretches enough to see it properly i.e. with a sharp focus. In this case the ciliary muscles are completely relaxed.
But if we are trying to see something which is near, then the eye tries to maintain a sharp focus on the object and things that we see and the ciliary muscles will contract. The suspensory ligaments are also not tight at this stage. Finally the eye lens will adjust itself i.e. become convex.
As an effect, the eye lens becomes dense, and it increases its converging strength.
Explanation:
- The muscles of ciliary in the eye contract as an object is brought closer to eye.
- If the muscles of ciliary contract, the ligaments suspensory that are connected to them are softened, which allows them to avoid pulling the lens.
- As an effect, the eye lens becomes dense, and it increases its converging strength.
- The stronger converging power helps the eye to concentrate the diverging radiation from the surrounding target, creating a clear picture on the retina.
To know more about Sharp focus, visit:
The image of the object formed by a lens on screen is not sharp focused. Suggest a method to get clear image on the screen without disturbing the position of the object the lens or the screen.
https://brainly.in/question/7876736
Which part brings the image into sharp focus on the retina? How does it do this?
https://brainly.in/question/11400055