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Chapter 2: Acids, Bases and Salts
Chapter 3: Metals and Non-metals
Chapter 4: Carbon and its Compounds
Chapter 5: Periodic Classification of Elements
Chapter 6: Life Processes
Chapter 7: Control and Coordination
Chapter 8: How do Organisms Reproduce?
Chapter 9: Heredity and Evolution
Chapter 10: Light – Reflection and Refraction
▶ Chapter 11: The Human Eye and the Colourful World
Chapter 12: Electricity
Chapter 13: Magnetic Effects of Electric Current
Chapter 14: Sources of Energy
Chapter 15: Our Environment
Chapter 16: Sustainable Management of Natural Resources
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.
NCERT solutions for Class 10 Science Chapter 11 The Human Eye and the Colourful World Intext Questions [Page 190]
Define the term: Power of accommodation of the eye.
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?
What is the far point and near point of the human eye with normal vision?
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?
NCERT solutions for Class 10 Science Chapter 11 The Human Eye and the Colourful World Exercises [Pages 197 - 198]
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
The human eye forms the image of an object at its:
cornea
iris
pupil
retina
The least distance of distinct vision for a young adult with normal vision is about
25m
2.5cm
25cm
2.5m
The change in focal length of an eye-lens is caused by the action of the:
pupil
retina
ciliary muscles
iris
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?
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?
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.
Why is a normal eye not able to see clearly the objects placed closer than 25 cm?
What happens to the image distance in the eye when we increase the distance of an object from the eye?
Why do stars twinkle on a clear night?
Explain why the planets do not twinkle?
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.
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
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.
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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.
