NCERT solutions for Class 10 Science chapter 11 - The Human Eye and the Colourful World [Latest edition]

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NCERT solutions for Class 10 Science chapter 11 - The Human Eye and the Colourful World - Shaalaa.com
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Solutions for Chapter 11: The Human Eye and the Colourful World

Below listed, you can find solutions for Chapter 11 of CBSE NCERT for Class 10 Science.


Intext QuestionsExercises
Intext Questions [Page 190]

NCERT solutions for Class 10 Science Chapter 11 The Human Eye and the Colourful World Intext Questions [Page 190]

Intext Questions | Q 1 | Page 190

Define the term: Power of accommodation of the eye.

Intext Questions | Q 2 | Page 190

A person with a myopic eye cannot see objects beyond 1.2 m distinctly. What should be the type of the corrective lens used to restore proper vision?

Intext Questions | Q 3 | Page 190

What is the far point and near point of the human eye with normal vision?

Intext Questions | Q 4 | Page 190

A student has difficulty reading the blackboard while sitting in the last row. What could be the defect the child is suffering from? How can it be corrected?

Exercises [Pages 197 - 198]

NCERT solutions for Class 10 Science Chapter 11 The Human Eye and the Colourful World Exercises [Pages 197 - 198]

Exercises | Q 1 | Page 197

The human eye can focus objects at different distances by adjusting the focal length of the eye lens. This is due to

  • presbyopia

  • accommodation

  • near-sightedness

  • far-sightedness

Exercises | Q 2 | Page 198

The human eye forms the image of an object at its:

  • cornea

  • iris

  • pupil

  • retina

Exercises | Q 3 | Page 198

The least distance of distinct vision for a young adult with normal vision is about

  • 25m

  • 2.5cm

  • 25cm

  • 2.5m

Exercises | Q 4 | Page 198

The change in focal length of an eye-lens is caused by the action of the:

  • pupil

  • retina

  • ciliary muscles

  • iris

Exercises | Q 5 | Page 198

A person needs a lens of power -5.5 dioptres for correcting his distant vision. For correcting his near vision he needs a lens of power +1.5 dioptre. What is the focal length of the lens required for correcting (i) distant vision, and (ii) near vision?

Exercises | Q 6 | Page 198

The far point of a myopic person is 80 cm in front of the eye. What is the nature and power of the lens required to correct the problem?

Exercises | Q 7 | Page 198

Make a diagram to show how hypermetropia is corrected. The near point of a hypermetropic eye is 1 m. What is the power of the lens required to correct this defect? Assume that the near point of the normal eye is 25 cm.

Exercises | Q 8 | Page 198

Why is a normal eye not able to see clearly the objects placed closer than 25 cm?

Exercises | Q 9 | Page 198

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

Exercises | Q 10 | Page 198

 Why do stars twinkle on a clear night?

Exercises | Q 11 | Page 198

Explain why the planets do not twinkle?

Exercises | Q 12 | Page 198

Why does the sun appear reddish early in the morning? Will this phenomenon be observed by an observer on the moon? Justify your answer with a reason.

Exercises | Q 13 | Page 198

Why does the sky appear dark (or black) to an astronaut instead of blue?

Solutions for Chapter 11: The Human Eye and the Colourful World

Intext QuestionsExercises
NCERT solutions for Class 10 Science chapter 11 - The Human Eye and the Colourful World - Shaalaa.com

NCERT solutions for Class 10 Science chapter 11 - The Human Eye and the Colourful World

Shaalaa.com has the CBSE Mathematics Class 10 Science CBSE solutions in a manner that help students grasp basic concepts better and faster. The detailed, step-by-step solutions will help you understand the concepts better and clarify any confusion. NCERT solutions for Mathematics Class 10 Science CBSE 11 (The Human Eye and the Colourful World) include all questions with answers and detailed explanations. This will clear students' doubts about questions and improve their application skills while preparing for board exams.

Further, we at Shaalaa.com provide such solutions so students can prepare for written exams. NCERT textbook solutions can be a core help for self-study and provide excellent self-help guidance for students.

Concepts covered in Class 10 Science chapter 11 The Human Eye and the Colourful World are Spherical Mirrors, Concave Mirror, Convex Mirror, Concave Lens, Refraction of Light, Image Formation by Convex Mirror, Sign Convention for Reflection by Spherical Mirrors, Mirror Equation/Formula, Images Formed by Spherical Mirrors, Image Formation by Concave Mirror, Reflection of Light, Law of Reflection of Light, Linear Magnification (M) Due to Spherical Mirrors, Magnification Due to Spherical Lenses, Power of a Lens, Mirrors and Its Types, Plane Mirror and Reflection, Rules for the Construction of Image Formed by a Spherical Mirror, Refraction of Light Through a Rectangular Glass Slab, Law of Refraction of Light, Refractive Index, Spherical Lens, Images Formed by Sperical Lenses, Guideline for Image Formation Due to Refraction Through a Convex and Concave Lens, Images Formed Due to Refraction Through a Concave Lens, Convex Lens, Images Formed Due to Refraction Through a Convex Lens, Sign Convention for Spherical Lenses, Lens Formula, Spherical Mirrors, Concave Mirror, Convex Mirror, Concave Lens, Refraction of Light, Image Formation by Convex Mirror, Sign Convention for Reflection by Spherical Mirrors, Mirror Equation/Formula, Images Formed by Spherical Mirrors, Image Formation by Concave Mirror, Reflection of Light, Law of Reflection of Light, Linear Magnification (M) Due to Spherical Mirrors, Magnification Due to Spherical Lenses, Power of a Lens, Mirrors and Its Types, Plane Mirror and Reflection, Rules for the Construction of Image Formed by a Spherical Mirror, Refraction of Light Through a Rectangular Glass Slab, Law of Refraction of Light, Refractive Index, Spherical Lens, Images Formed by Sperical Lenses, Guideline for Image Formation Due to Refraction Through a Convex and Concave Lens, Images Formed Due to Refraction Through a Concave Lens, Convex Lens, Images Formed Due to Refraction Through a Convex Lens, Sign Convention for Spherical Lenses, Lens Formula.

Using NCERT Class 10 Science solutions The Human Eye and the Colourful World exercise by students is an easy way to prepare for the exams, as they involve solutions arranged chapter-wise and also page-wise. The questions involved in NCERT Solutions are essential questions that can be asked in the final exam. Maximum CBSE Class 10 Science students prefer NCERT Textbook Solutions to score more in exams.

Get the free view of Chapter 11, The Human Eye and the Colourful World Class 10 Science additional questions for Mathematics Class 10 Science CBSE, and you can use Shaalaa.com to keep it handy for your exam preparation.

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