Read and download free pdf of CBSE Class 10 Science Human eye and colourful world Sure Shot Questions B. Students and teachers of Class 10 Science can get free advanced study material, revision notes, sure shot questions and answers for Class 10 Science prepared as per the latest syllabus and examination guidelines in your school. Class 10 students should download this study material which will give them more knowledge for all chapters in Science and all important topics which are scoring and can get you more marks. Students should also download free pdf of Chapter wise Notes for Class 10 Science prepared by school teachers as per the latest NCERT, CBSE, KVS books and syllabus issued this year and also download free worksheets and question papers available here to get higher scores in school exams and tests, also click here for more Study Material for Class 10 Science
Study Material for Class 10 Science Chapter 11 Human Eye and Colourful World
Class 10 Science students should refer to the following Pdf for Chapter 11 Human Eye and Colourful World in Class 10. These notes and test paper with questions and answers for Class 10 Science will be very useful for exams and help you to score good marks
Class 10 Science Chapter 11 Human Eye and Colourful World
CBSE Class 10 Science Human eye and colourful world Sure Shot Questions B. There are many more useful educational material which the students can download in pdf format and use them for studies. Study material like concept maps, important and sure shot question banks, quick to learn flash cards, flow charts, mind maps, teacher notes, important formulas, past examinations question bank, important concepts taught by teachers. Students can download these useful educational material free and use them to get better marks in examinations. Also refer to other worksheets for the same chapter and other subjects too. Use them for better understanding of the subjects.
THE HUMAN EYE AND THE COLOURFUL WORLD
MULTIPLE CHOICE QUESTIONS
1. A person cannot see distinctly objects kept beyond 2 m. This defect can be corrected by using a lens of power
(a) + 0.5 D (b) – 0.5 D
(c) + 0.2 D (d) – 0.2 D
2. A student sitting on the last bench can read the letters written on the blackboard but is not able to read the letters written in his text book. Which of the following statements is correct?
(a) The near point of his eyes has receded away
(b) The near point of his eyes has come closer to him
(c) The far point of his eyes has come closer to him
(d) The far point of his eyes has receded away
3. A prism ABC (with BC as base) is placed in different orientations. A narrow beam of white light is incident on the prism as shown in below Figure. In which of the following cases, after dispersion, the third colour from the top corresponds to the colour of the sky?
(a) (i) (b) (ii)
(c) (iii) (d) (iv)
4. At noon the sun appears white as
(a) light is least scattered
(b) all the colours of the white light are scattered away
(c) blue colour is scattered the most
(d) red colour is scattered the most
5. Which of the following phenomena of light are involved in the formation of a rainbow?
(a) Reflection, refraction and dispersion
(b) Refraction, dispersion and total internal reflection
(c) Refraction, dispersion and internal reflection
(d) Dispersion, scattering and total internal reflection
6. Twinkling of stars is due to atmospheric
(a) dispersion of light by water droplets
(b) refraction of light by different layers of varying refractive indices
(c) scattering of light by dust particles
(d) internal reflection of light by clouds
7. The clear sky appears blue because
(a) blue light gets absorbed in the atmosphere
(b) ultraviolet radiations are absorbed in the atmosphere
(c) violet and blue lights get scattered more than lights of all other colours by the atmosphere
(d) light of all other colours is scattered more than the violet and blue colour lights by the atmosphere
(a) Red light moves fastest
(c) All the colours of the white light move with the same speed
(d) Yellow light moves with the mean speed as that of the red and the violet light
9. The danger signals installed at the top of tall buildings are red in colour. These can be easily seen from a distance because among all other colours, the red light
(a) is scattered the most by smoke or fog
(b) is scattered the least by smoke or fog
(c) is absorbed the most by smoke or fog
(d) moves fastest in air
10. Which of the following g phenomena contributes significantly to the reddish appearance of the sun at sunrise or sunset?
(b) Scattering of light
(c) Total internal reflection of light
(d) Reflection of light from the earth
11. The bluish colour of water in deep sea is due to
(a) the presence of algae and other plants found in water
(b) reflection of sky in water
(c) scattering of light
(d) absorption of light by the sea
12. When light rays enter the eye, most of the refraction occurs at the
(a) crystalline lens
(c) iris
13. The focal length of the eye lens increases when eye muscles
(a) are relaxed and lens becomes thinner
(b) contract and lens becomes thicker
(c) are relaxed and lens becomes thicker
(d) contract and lens becomes thinner
14. Which of the following statement is correct?
(a) A person with myopia can see distant objects clearly
(b) A person with hypermetropia can see nearby objects clearly
(c) A person with myopia can see nearby objects clearly
(d) A person with hypermetropia cannot see distant objects clearly
SHORT ANSWER QUESTIONS
15. Draw ray diagrams each showing (i) myopic eye and (ii) hypermetropic eye.
16. A student sitting at the back of the classroom cannot read clearly the letters written on the blackboard. What advice will a doctor give to her? Draw ray diagram for the correction of this defect.
17. How are we able to see nearby and also the distant objects clearly?
18. A person needs a lens of power –4.5 D for correction of her vision.
(a) What kind of defect in vision is she suffering from?
(b) What is the focal length of the corrective lens?
(c) What is the nature of the corrective lens?
19. How will you use two identical prisms so that a narrow beam of white light incident on one prism emerges out of the second prism as white light? Draw the diagram.
20. Draw a ray diagram showing the dispersion through a prism when a narrow beam of white light is incident on one of its refracting surfaces. Also indicate the order of the colours of the spectrum obtained.
21. Is the position of a star as seen by us its true position? Justify your answer.
22. Why do we see a rainbow in the sky only after rainfall?
23. Why is the colour of the clear sky blue?
24. What is the difference in colours of the Sun observed during sunrise/sunset and noon? Give explanation for each.
LONG ANSWER QUESTIONS
25. Explain the structure and functioning of Human eye. How are we able to see nearby as well as distant objects?
26. When do we consider a person to be myopic or hypermetropic? Explain using diagrams how the defects associated with myopic and hypermetropic eye can be corrected?
27. Explain the refraction of light through a triangular glass prism using a labelled ray diagram. Hence define the angle of deviation.
28. How can we explain the reddish appearance of sun at sunrise or sunset? Why does it not appear red at noon?
29. Explain the phenomenon of dispersion of white light through a glass prism, using suitable ray diagram.
30. How does refraction take place in the atmosphere? Why do stars twinkle but not the planets?
Please click the link below to download CBSE Class 10 Science Human eye and colourful world Sure Shot Questions B.
| CBSE Class 10 Science Electricity |
| CBSE Class 10 Science Electricity Notes |
| CBSE Class 10 Science Electricity Sure Shot Questions A |
| Class 10 Science Electricity Exam Notes |
CBSE Class 10 Science Chapter 11 Human Eye and Colourful World Study Material
We hope students liked the above Study Material for Chapter 11 Human Eye and Colourful World designed as per the latest syllabus for Class 10 Science released by CBSE. Students of Class 10 should download the Study Material in Pdf format, read the notes and related questions and solutions given in above Class 10 Science Study Material on daily basis. All latest Study Material have been developed for Science by referring to the most important and regularly asked topics which the students should learn and practice to get better score in school tests and examinations. Expert teachers of studiestoday have referred to NCERT book for Class 10 Science to develop the Science Class 10 Study Material. After solving the questions given in the Study Material which have been developed as per latest course books also refer to the NCERT solutions for Class 10 Science designed by our teachers. Also download Class 10 Science Sample Papers given on studiestoday. After solving these you should also refer to Class 10 Science MCQ Test for the same chapter.
You can download free study material for Class 10 Science Chapter 11 Human Eye and Colourful World for latest academic session from StudiesToday.com
Yes, the study material given here for Class 10 Science Chapter 11 Human Eye and Colourful World is for current CBSE session
All study maetrial for CBSE Class 10 Science Chapter 11 Human Eye and Colourful World is free