Our ncert solutions for Solutions 11. Human Eye and Colourful World - Exercise | Class 10 Science - Toppers Study is the best material for English Medium students cbse board and other state boards students.
Solutions 11. Human Eye and Colourful World - Exercise | Class 10 Science - Toppers Study
Topper Study classes prepares ncert solutions on practical base problems and comes out with the best result that helps the students and teachers as well as tutors and so many ecademic coaching classes that they need in practical life. Our ncert solutions for Solutions 11. Human Eye and Colourful World - Exercise | Class 10 Science - Toppers Study is the best material for English Medium students cbse board and other state boards students.
Solutions 11. Human Eye and Colourful World - Exercise | Class 10 Science - Toppers Study
CBSE board students who preparing for class 10 ncert solutions maths and Science solved exercise chapter 11. Human Eye and Colourful World available and this helps in upcoming exams 2023-2024.
You can Find Science solution Class 10 Chapter 11. Human Eye and Colourful World
- All Chapter review quick revision notes for chapter 11. Human Eye and Colourful World Class 10
- NCERT Solutions And Textual questions Answers Class 10 Science
- Extra NCERT Book questions Answers Class 10 Science
- Importatnt key points with additional Assignment and questions bank solved.
Chapter 11 Science class 10
Exercise class 10 Science Chapter 11. Human Eye and Colourful World
Sure! The following topics will be covered in this article
- Solutions 11. Human Eye And Colourful World - Exercise | Class 10 Science - Toppers Study
- Class 10 Ncert Solutions
- Solution Chapter 11. Human Eye And Colourful World Class 10
- Solutions Class 10
- Chapter 11. Human Eye And Colourful World Exercise Class 10
11. Human Eye and Colourful World
| Exercise |
Solutions 11. Human Eye and Colourful World - Exercise | Class 10 Science - Toppers Study
Exercise : Chapter 11
Q1. The human eye can focus objects at different distances by adjusting the focal length of the eye lens. This is due to
(a) presbyopia.
(b) accommodation.
(c) near-sightedness.
(d) far-sightedness.
Answer: (b) accommodation.
Q2. The human eye forms the image of an object at its
(a) cornea. (b) iris (c) pupil. (d) retina.
Answer: (d) retina
Q3. The least distance of distinct vision for a young adult with normal vision is about
(a) 25 m.
(b) 2.5 cm.
(c) 25 cm.
(d) 2.5 m.
Answer: (c) 25 cm
Q4. The change in focal length of an eye lens is caused by the action of the
(a) pupil.
(b) retina.
(c) ciliary muscles.
(d) iris.
Answer: (c) ciliary muscles
Q5. 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?
Answer:
Q6. 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?
Answer:
Q7. 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.
Answer:
Q8. Why is a normal eye not able to see clearly the objects placed closer than 25 cm?
Answer:
Q9. What happens to the image distance in the eye when we increase the distance of an object from the eye?
Answer:
Q10. Why do stars twinkle?
Answer:
Q11. Explain why the planets do not twinkle.
Answer:
Q12. Why does the Sun appear reddish early in the morning?
Answer:
Q13. Why does the sky appear dark instead of blue to an astronaut?
Answer:
Other Pages of this Chapter: 11. Human Eye and Colourful World
Select Your CBSE Classes
Important Study materials for classes 06, 07, 08,09,10, 11 and 12. Like CBSE Notes, Notes for Science, Notes for maths, Notes for Social Science, Notes for Accountancy, Notes for Economics, Notes for political Science, Noes for History, Notes For Bussiness Study, Physical Educations, Sample Papers, Test Papers, Mock Test Papers, Support Materials and Books.

Mathematics Class - 11th
NCERT Maths book for CBSE Students.
books
Study Materials List:
Solutions ⇒ Class 10th ⇒ Science
Topper's Study
New Books