NCERT Solutions for Class 10 Science Chapter 11 The Human Eye and the Colourful World is a helpful solution guide created with the goal of assisting students in clarifying their concerns and thoughts. NCERT Solutions for Class 10 Science presents basic topics in a student-friendly manner and is jam-packed with term-wise exam and competitive exam-oriented questions, activities, and exercises. The contribution of the teaching faculty with extensive teaching expertise is NCERT Solutions for Class 10 Science. NCERT Class 10 Science Solutions ensure that the solutions are user-friendly and can be grasped in a single sitting. It is designed with a concept-based approach in mind, as well as a precise response method for CBSE Term I examinations. For the best results in CBSE Term I and competitive exams, use NCERT Solutions for Class 10. For simplicity of use, it is offered in both web and PDF formats.
Chapter 11 of CBSE Answer key for Class 10 Science – Synopsis:
- The accommodation of the eye is the ability of the eye to focus on both near and far objects by altering its focal length.
- The near point of the eye, also known as the least distance of distinct vision, is the shortest distance at which the eye can see objects clearly without exertion. It’s roughly 25 centimetres for a young adult with normal vision.
- Myopia, hypermetropia, and presbyopia are three common refractive visual abnormalities. A concave lens of appropriate power is used to correct myopia (short-sightedness — the image of distant objects is focused before the retina).
- A convex lens of appropriate power is used to rectify hypermetropia (far-sightedness, in which the picture of adjacent objects is focused beyond the retina). With aging, the eye’s ability to accommodate changes diminishes.
- Dispersion is the breaking of white light into its component colours.
- The blue colour of the sky and the reddening of the Sun at sunrise and sunset are caused by light scattering.
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NCERT Exemplar Solutions for Science Chapter 11 in Class 10
Class 10 Science Chapter 11 CBSE Notes
Class 10 Science NCERT Solutions Chapter 11: The Human Eye and the Multi-coloured World
The delicate structure of the human eye is described in NCERT Class 10 Science Chapter 11. It does explain why the sun appears to be different colours at sunrise and dusk. It explains the notion of ocular accommodation. In NCERT Solutions, several eye problems such as refractive defects of vision such as hypermetropia, myopia, and presbyopia are discussed. It refers to the eye’s closest point or the shortest distance at which distinct vision may be seen. This chapter covers the following topics:
11.1 The Human Eye (4 questions)
The importance of the human eye, its structure, and how it functions are discussed in this topic. One of the most valuable and sensitive sense organs is the human eye. The human eye is the most important sense organ because it allows us to perceive the lovely, colourful world around us. The eye lens is also discussed in the context of the topic, which explains the power of accommodation.
11.2 Vision Problems as Well as how to Fix Them
The subject is eyesight defects and how to correct them. There are three basic types of refractive errors in the eyes. Myopia, or near-sightedness, hypermetropia, or far-sightedness, and Presbyopia are the three types. The use of appropriate spherical lenses can fix these flaws.
11.3 Light Refraction Through a Prism
You’ve learned how light is refracted when it passes through a rectangular glass slab. The emerging ray is parallel to the incident ray for parallel refracting surfaces, such as a glass slab. It is, however, somewhat offset laterally. Through an activity, you will learn how light is refracted through a triangular glass prism in this topic.
11.4 White Light Dispersion via a Glass Prism
You must have witnessed and admired the magnificent colors of a rainbow. You will learn how rainbows develop by participating in an activity involving light refraction through a prism in this topic. It will assist you in understanding why white light is dispersed by a glass prism.
11.5 Refraction of the Atmosphere
The topic delves into Atmospheric Refraction and how it relates to star twinkling, early sunrises, and late sunsets. The twinkling of a star is caused by starlight being refracted by the atmosphere.
11.6 Light Scattering
You learned about light scattering by colloidal particles in the last class. A beam of light going through a true solution does not have a visible path. However, in a colloidal solution, where the particle size is substantially greater, its path becomes visible. The Tyndall Effect is also discussed, as well as why the clear sky-blue colour. And the sun’s colour at sunrise and sunset.
NCERT Solutions for Class 10 Science Chapter 11: The Human Eye and the Colourful World
- The detailed structure of the human eye is explained in NCERT Solutions for Class 10.
- Explains the many flaws that occur in humans, as well as how to rectify them.
- The principle of light dispersion is explained in a straightforward manner.
- It also explains why the sky appears blue, as well as the colour of the sun during sunset and sunrise events.
NCERT Solutions for Class 10 Science Chapter 11 Highlights: The Human Eye and the Multi-coloured World
- NCERT Solutions uses a straightforward and easy-to-understand approach to teach students about various topics.
- To aid students in their preparations, NCERT Solutions provides complete answers to all of the questions.
- It is an excellent resource for passing the CBSE Term I exams with flying colours, as well as Science Olympiads and other competitive exams.
- All of the questions in the relevant NCERT textbooks are entirely solved in this book.
NCERT Solutions for Class 10 Science Chapter 11: Frequently Asked Questions
What would I gain from studying NCERT Solutions for Class 10 Science’s The Human Eye and Colourful World?
NCERT Science Solutions for Class 10 The Human Eye and the Colourful World gives a thorough picture of the human eye’s structure. This chapter also discusses the numerous flaws that occur in humans and how to correct them. The notion of light dispersion is described in simple terms to aid students in their preparation for the CBSE Term I exams. Based on the CBSE syllabus and rules, the events of sunset and dawn are also discussed in this chapter.
In Chapter 11 of NCERT Solutions for Class 10 Science, what are the eyesight problems and how to correct them?
The three vision defects are Presbyopia, Hypermetropia, and Myopia. Presbyopia is a vision problem that affects both near and far objects. Hypermetropia is a condition in which a person cannot see nearby things and can be corrected with a convex lens. Myopia is a condition in which a person can only perceive nearby things, and it can be corrected using a concave lens. These ideas are illustrated in the solutions PDF to aid students in their preparation for the CBSE Term I exams.
Chapter 11 of NCERT Solutions for Class 10 Science, explains the concept of Atmospheric Refraction Phenomena.
The deflection of light in the atmosphere is known as the Atmospheric Refraction phenomenon. Atmospheric radiation is defined as a shift in the direction of propagation of radiation in the atmosphere. The velocity of light through the air is the basis for this refraction. With increasing density, this is lower. It’s also responsible for things like delayed sunsets, early sunrises, and the sparkling of stars.
Mention the topics covered in NCERT Solutions for Class 10 Science, Chapter 11.
Chapter 11 of NCERT Solutions for Class 10 Science covers the following topics:
- The Human Eye
- Vision Problems and How to Fix Them
- Light Refraction Through a Prism
- White Light Dispersion via a Glass Prism
- Refraction of Light in the Atmosphere
- Light Scattering