For students to study effectively for the Board exam, CBSE Class 10 Science Chapter 11 The Human Eye And The Colorful World to NCERT questions have been provided here.
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Notes for human eye and colourful world class 10 notes for cbse science chapter 11 are developed by OSWAAL subject specialists to help students achieve high marks in the CBSE Board Exam. Students should completely refer to these learning resources in order to comprehend the topics and achieve high scores in the examination.
CBSE Class 10 Notes Science of All Chapters:
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The eye is spherical in shape and measures 2.3 cm in diameter on average. The cornea, iris, pupil, lens, ciliary muscles, retina, nerve cells, optic nerve, yellow spot, aqueous and vitreous humor, and suspensory ligament are all part of the eye's internal structure.
The human eyes are among the most complex sensory organs in the body. Every component of the human eye plays an important role. The eye is made up of two different parts fused together and both are entirely spherical. It is made up of many types of muscles and tissues that result in it is approximately spherical in shape.
Sclera: It is a white layer of eyes. It is a fabrication. It is a supporting wall of eyes ball. The interior parts are protected by strong connective tissue.
It is a loose tissue that covers the surface of the eye’s ball. It is a clear and thin membrane. It lubricates in nature and maintains the moisture of the eyes.
Cornea: The cornea is transparent in nature. It is a front section of our eye that covers the pupil and iris. It allows the light to enter the eyes.
Iris: It is an important part of the eyes. It is coloured and visible from the outside. The iris plays an important role to regulate the diameter of the pupil in response to the light source. The size of iris is depends upon the amount of light. When a large amount of light enters our eyes then it contrasts and when a small amount of light enters our eyes then it expands.
Pupil: It is the central part of the iris. It is a black hole between the iris.
The eyes lenses are clear and biconvex. It is transparent in nature and made up of jelly like fluid. Light is refracted by the lens and the cornea to focus on the retina.
It is a layer of photoreceptor and glial cell
The retina is the eye’s innermost layer. It is light sensitive and functions as a camera film. It is the site where the image is formed. There are three types of nerve cells are found there.
The optic nerve is found in the back of the eyes. All nerve impulses from the retina to the brain are carried through the optic nerves.
All nerve impulses from the retina to the human brain are carried through the optic nerves.
Aqueous Humour: It is present between the cornea and the eyes lenses. It maintains the moisture of the cornea and the shape of the eyeball.
Vitreous Humour: It is a jelly-like translucent material found between the lens and the retina. Water (99%), collagen, proteins, and other ingredients are included. Vitreous humour protects the eyes and maintains the spherical shape of the eyes.
Defects of vision in human eyes (human eye class 10 notes)
There are commonly three types of defects in human eyes. It is caused by many factors.
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Write a short note on human eyes? (human eye class 10 notes)
The human eye is an optical instrument which is used to see an object. It is an important sense organ of the human body. It works similarly to a camera.
It does not have a perfectly spherical form. External components are visible from the outside of the eyes but the internal components are not visible from the outside of the eyes.
When white light is diffused by a prism, which colour will be refracted the most?
The medium’s refractive index is highest for violet light and lowest for the red light. When white light passes through a prism, it disperses into seven constituent colours, with violet light exhibiting the greatest variance.
Why we cannot see through the fog?
Fog is a visible aerosol made up of microscopic water droplets or ice crystals that stick to the earth’s surface. When light travels through the fog, it reacts with the fog’s water droplets, scattering it. Fog droplets disperse light differently in different directions. Light is scattered from water droplets and diverse, it causes the eye to dilate.