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S. Chand Class 10 | Physics: Ch6 The Human Eye And The Colourful World
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| S. Chand Class 10 | Physics: Ch6 The Human Eye And The Colourful World |
Summery
The Human Eye ; Construction and Working of Eye ; The Function of Iris and Pupil ; Light Sensitive Cells in the Retina of Eye : Rods and Cones ; Accommodation ; Range of Vision of a Normal Human Eye ; Defects of Vision and Their Correction by Using Lenses ; Myopia (Short-Sightedness or Near Sightedness) ; Hypermetropia (Long-Sightedness or Far-Sightedness); Presbyopia and Cataract ; Why Do We Have Two Eyes for Vision and Not Just One ; The Gift of Vision : Eye Donation ; Glass Prism ; Refraction of Light Through a Glass Prism ; Dispersion of Light ; Recombination of Spectrum Colours to Give White Light ; The Rainbow ; Atmospheric Refraction ; Effects of Atmospheric Refraction : Twinkling of Stars , The Stars Seem Higher Than They Actually Are and Advance Sunrise and Delayed Sunset ; Scattering of Light : Tyndall Effect ; The Colour of Scattered Light Depends on the Size of the Scattering Particles ; Effects of Scattering of Sunlight in the Atmosphere ; Why the Sky is Blue ; Why the Sun Appears Red at Sunrise and Sunset ; Experiment to Study the Scattering of Light
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About the Authors
Lakhmir Singh has extensive experience of teaching science subjects and has written many books on the three main branches of science physics (Honours) from the Hindu collage and later obtained on M.Sc from Delhi University. Lakhmir Singh began his teaching career as a lecturer in Dyal Singh collage of university of Delhi. Later, he became a reader at that college.
He did his M.Sc. from Delhi University in 1969. Since then he has been teaching in Dyal Singh College of Delhi University, Delhi. He started writing books in 1980. Lakhmir Singh believes that book writing is just like classroom teaching. Though a book can never replace a teacher but it should make the student feel the presence of a teacher. Keeping this in view, he writes books in such a style that students never get bored reading his books. Lakhmir Singh has written more than 15 books so far on all the science subjects: Physics, Chemistry and Biology. He believes in writing quality books. He does not believe in quantity.
Manjit Kaur has been a school teacher for several years and she has co-authored many science books. She graduated with a B.Sc from Miranda House, Delhi University and later obtained a B.Ed from Delhi University. This book is published by S. Chand & Company New Delhi.
She did her B.Sc., B.Ed. from Delhi University in 1970. Since then she has been teaching in a reputed school of Directorate of Education, Delhi. Manjit Kaur is such a popular science teacher that all the students want to join those classes which she teaches in the school. She has a vast experience of teaching science to school children, and she knows the problems faced by the children in the study of science. Manjit Kaur has put all her teaching experience into the writing of science books. She has coauthored more than 15 books alongwith her husband, Lakhmir Singh.