Answer sheets of meritorious students of class 12th’ 2012 M.P Board – All SubjectsFebruary 14, 2013
39 Insightful Publications
NCERT Solutions for Class 10 Science Chapter 11: The top academicians at Embibe have prepared detailed and step-wise Class 10 Science CBSE NCERT Solutions. These solutions guide students with explanations along with tips and tricks for solving the exercise questions. Downloadable NCERT Solutions for Class 10 Science Chapter 11 and the in-text questions will help students understand tricky concepts. Students can increase their confidence levels and score maximum marks in the exam by practising the NCERT solutions.
We have provided CBSE NCERT Solutions for Class 10 Science Chapter 11 – Human Eye and Colourful World. Students can practice the NCERT questions referring to these solutions during their preparation. The step-by-step solutions are meant to increase the concept clarity. Also, students will understand the right approach of problem-solving. So, read on to access the solutions for NCERT Class 10 Science Chapter 11: The Human Eye and Colourful world in PDF format.
|Practice CBSE Class 10 Subject Wise Questions|
|Practice Questions from CBSE Class 10 Books Mathematics|
|Practice Questions from CBSE Class 10 Books Science|
|Practice Questions from CBSE Class 10 Books Social Science|
Before getting into the details of Chapter 11 NCERT Solutions, let us have an overview of the topics and sub-topics of this chapter.
|Section Number||Topic Name|
|11.1||The Human Eye|
|11.1.1||Power of Accommodation|
|11.2||Defects of Vision and their Correction|
|11.3||Refraction of Light Through Prism|
|11.4||Dispersion of White Light by Glass Prism|
|11.6||Scattering of Light|
|11.6.2||Why is the Colour of Clear Sky Blue?|
|11.6.3||Colour of Sun at Sunrise and Sunset|
Here we have provided the direct link to download NCERT Solutions For Class 10 Science Chapter 11 In-text Questions in PDF format. The NCERT Class 10 Science Chapter 11: The Human Eye and Colourful World helps students understand about the structure of the human eye and its various defects. Moreover, students will also learn about the corrective measures to cure these eye defects.
The concept of dispersion of light is well explained in easy-to-understand language for the convenience of students as a better understanding of topics will result in good grades in upcoming Board Exams. The sunset and sunrise events are also covered in this chapter, strictly as per the prescribed CBSE syllabus and guidelines. Download the NCERT Solutions for Class 10 Science Chapter 11 in PDF format from the link provided below:
Question: The human eye can focus objects at different distances by adjusting the focal length of the eye lens. This is due to:
Answer: The human eye can focus objects at different distances by adjusting the focal length of the eye lens. The ability of the eye lens to adjust its focal length is called accommodation. The focusing to near and suddenly far objects, this adjustment is done through the accommodation of an eye. All the other three are defects of an eye.
Question: Explain why the planets do not twinkle.
Answer: The planets are much closer to the earth and are thus seen as extended sources. If we consider a planet as a collection of a large number of point-sized sources of light, the total variation in the amount of light entering our eye from all the individual point- sized sources will average out to zero, thereby nullifying the twinkling effect.
Question: Why does the sky appear dark instead of blue to an astronaut?
Answer: The sky appears dark to an astronaut because there is no atmosphere in the outer space that can scatter the sunlight. As the sunlight is not scattered, no scattered light reaches the eyes of the astronauts, and the sky appears black to them.
Chapter Description: The Human Eye has been the subject of conflicting interpretations since ancient times. Many ancient physicians and philosophers believed in the idea of the “active eye”, according to which light emits from the eye, seizing objects with its rays. Al-Haytham made the most significant breakthrough around 1000 AD. He argued that humans could see because of light entering the eye from an outside source and there is no light beam from the eye itself.
The chapter Human Eye and The Colourful World is an extension of Chapter 10 (Light – Reflection and Refraction). In this chapter, we will learn about the Human Eye, the Power of Accommodation, Defects in the Human Eye, and their Correction. We will use the concept of reflection and refraction to study some of the optical phenomena in nature, the formation of the rainbow, the splitting of white light, the blue colour of the sky, and the colour of the sun at sunrise and sunset. A strong hold on the topics from this chapter will also benefit students in their further classes.
Students can take a Mock Test on The Human Eye & the Colourful World for free on Embibe and assess their preparation and also get familiar with the exam pattern. This in return will help them score good marks in the final exam.your examinations.
The NCERT Solutions by Embibe has many advantages, some of which are listed below:
Q.1: Name the defect of vision in which a person cannot see the far objects clearly but can clearly see the nearby objects.
Ans: The person is suffering from myopia.
Q.2: What is a human’s field of view with both eyes open?
Ans: A human can see up to 180 degrees with both eyes open.
Q.3: Name the phenomenon due to which the stars appear to shift from their actual position.
Ans: Refraction of light.
Q.4: Which lens is used for the correction of myopia?
Ans: Myopia can be corrected with the use of a concave lens.
Q.5: What is the nature and shape of the image formed on the retina of the human eye?
Ans: The image formed on the retina is real and inverted.
Take Free Mock Tests for CBSE Class 10 on EmbibeCreate Free Account