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Chapters
2: Acids, Bases and Salts
3: Metals and Non-metals
4: Carbon and its Compounds
5: Periodic Classification of Elements
6: Life Processes
7: Control and Coordination
8: How do Organisms Reproduce?
9: Heredity and Evolution
10: Light – Reflection and Refraction
▶ 11: The Human Eye and the Colourful World
12: Electricity
13: Magnetic Effects of Electric Current
14: Sources of Energy
15: Our Environment
16: Sustainable Management of Natural Resources
![NCERT solutions for Science [English] Class 10 chapter 11 - The Human Eye and the Colourful World - Shaalaa.com](/images/science-english-class-10_6:dcc6a89c937f40eb9d87d3f9319d90f6.jpg "NCERT solutions for Science [English] Class 10 chapter 11 - The Human Eye and the Colourful World")
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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, Karnataka Board NCERT for Science [English] Class 10.
NCERT solutions for Science [English] Class 10 11 The Human Eye and the Colourful World Intext Questions [Page 190]
What is meant by 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 Science [English] Class 10 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 ______.
25 m
2.5 cm
25 cm
2.5 m
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 11: The Human Eye and the Colourful World
NCERT solutions for Science [English] Class 10 chapter 11 - The Human Eye and the Colourful World
Shaalaa.com has the CBSE, Karnataka Board Mathematics Science [English] Class 10 CBSE, Karnataka Board 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 Science [English] Class 10 CBSE, Karnataka Board 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 Science [English] Class 10 chapter 11 The Human Eye and the Colourful World are Human Eye, Refraction of Light Through a Prism, Dispersion of Light, Defects of Vision and Their Correction, Atmosphere Refraction, Scattering of Light, Defects of Vision and Their Corrections > Hypermetropia, Defects of Vision and Their Corrections > Presbyopia, Defects of Vision and Their Corrections > Myopia, Human Eye, Refraction of Light Through a Prism, Dispersion of Light, Defects of Vision and Their Correction, Atmosphere Refraction, Scattering of Light, Defects of Vision and Their Corrections > Hypermetropia, Defects of Vision and Their Corrections > Presbyopia, Defects of Vision and Their Corrections > Myopia, Human Eye, Refraction of Light Through a Prism, Dispersion of Light, Defects of Vision and Their Correction, Atmosphere Refraction, Scattering of Light, Defects of Vision and Their Corrections > Hypermetropia, Defects of Vision and Their Corrections > Presbyopia, Defects of Vision and Their Corrections > Myopia.
Using NCERT Science [English] Class 10 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, Karnataka Board Science [English] Class 10 students prefer NCERT Textbook Solutions to score more in exams.
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