NCERT Solutions for Class 10 Science Chapter 11: The Human Eye and Colourful World

NCERT Solutions for Class 10 Science is a beneficial solution guide designed with the intention of approaching the students to clear doubts and concepts. NCERT Solutions for Class 10 Science approaches students in a student-friendly way and is loaded with questions, activities, and exercises that are board and competitive exam oriented. NCERT Solutions for Class 10 science is the contribution by the teaching faculties having vast teaching experience. NCERT Class 10 Science Solutions makes sure that the answers are student-friendly and is easily understood in a single go. It is developed keeping in mind the concept-based approach along with the precise answering method for examinations. Refer NCERT Solutions for Class 10 for best score in board and competitive exams. It is made available in both web and PDF format for the ease of access.

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NCERT Solution for CBSE Class 10 Science Chapter 11 The Human Eye and Colourful Part 1
NCERT Solution for CBSE Class 10 Science Chapter 11 The Human Eye and Colourful Part 2
NCERT Solution for CBSE Class 10 Science Chapter 11 The Human Eye and Colourful Part 3
NCERT Solution for CBSE Class 10 Science Chapter 11 The Human Eye and Colourful Part 4
NCERT Solution for CBSE Class 10 Science Chapter 11 The Human Eye and Colourful Part 5
NCERT Solution for CBSE Class 10 Science Chapter 11 The Human Eye and Colourful Part 6

NCERT Solutions for class 10 Science Chapter 11: The Human Eye and Colourful World

NCERT Class 10 Science Chapter 11 describes the fine structure of the human eye. It does explain the reason behind the color of the sun during the time of sunrise and sunset. It explains the accommodation of the eye concept. Various defects that occur to the eye like refractive defects of vision which include hypermetropia, myopia, and presbyopia are discussed in NCERT Solutions. It describes the near point of the eye or the least distance of distinct vision. Topics included in this chapter are:

  • Atmospheric refraction
  • The human eye (4 questions)
  • Scattering of light
  • Refraction of light through a prism
  • Dispersion of white light by a glass prism
  • Post chapter exercise (13 questions)

Exercise 11.1 solution

NCERT Solutions for class 10 Science Chapter 11: The Human Eye and Colourful World

  • NCERT solutions for class 10 explains the detailed structure of the human eye.
  • Explains the various defects that happen for human and also describes the ways to correct it.
  • Dispersion of light concept is made understandable in a simple way.
  • It also explains the reason for the sky being blue along with the color of the sun at sunset and sunrise events.

Key features of NCERT Solutions for class 10 Science Chapter 11: The Human Eye and Colourful World

  • The simple and easily understandable approach is followed in NCERT solutions to make students aware of topics.
  • NCERT Solutions offer detailed answers to all the questions to help students in their preparations.
  • It is useful for successfully clearing the CBSE board exams in flying colors and is also the best guide for Science Olympiads, and other competitive exams.
  • Provides completely solved solutions to all the questions present in the respective NCERT textbooks.

Frequently Asked Questions on The Human Eye and Colourful World

What is meant by power of accommodation of the eye ?

The ability of the lens of the eye to adjust its focal length to clearly focus rays coming from distant as well from a near objects on the retina, is known as the power of accommodation of the eye.

What happens to the image distance in the eye when we increase the distance of an object from the eye ?

The image is formed on the retina even on increasing the distance of an object from the eye. For this eye lens becomes thinner and its focal length increases as the object is moved away from the eye.

Why do stars twinkle ?

The twinkling of a star is due to atmospheric refraction of starlight. The starlight, on entering the earth’s atmosphere, undergoes refraction continuously before it reaches the earth. The atmospheric refraction occurs in a medium of gradually changing refractive index.

Explain why the planets do not twinkle ?

Unlike stars, planets don’t twinkle. Stars are so distant that they appear as pinpoints of light in the night sky, even when viewed through a telescope. Because all the light is coming from a single point, its path is highly susceptible to atmospheric interference (i.e. their light is easily diffracted).

Why does the Sun appear reddish early in the morning ?

White light coming from the sun has to travel more distance in the atmosphere before reaching the observer. During this, the scattering of all coloured lights except the light corresponding to red colour takes place and so only the red coloured light reaches to the observer. Therefore the sun appears reddish at sunrise and sunset.

Why does the sky appear dark instead of blue to an astronaut ?

The sky appears dark instead of blue to an astronaut, as scattering of light does not take place outside the earth’s atmosphere.

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