SSC MCQ Question Ans REFRACTION OF LIGHT
A straight stick appears to be bent when it is obliquely immersed partly in water. If we look directly to the bottom of a jug full of transparent water its bottom seems to be raised up. Of course we observe these phenomena in our everyday life. These events results from a special property of light called refraction. A special event of refraction is total internal reflection. Mirage is formed in the desert, diamond looks bright and information signals are sent through optical fiber because of total internal reflection of light. Many of us use spectacles to remove the defects of eyes. The glass of the spectacle is a lens. We will discuss all these phenomena in this chapter.
Look at figure 9.1. here two media, air and glass are shown. Coming from air medium following the path AB, light ray incidents at point B of the separation surface PQ of two media. If the light ray goes straight it will follow the path BC′ but it changes its path and follows BC. This phenomenon of bending of ray of light is called refraction. Therefore, when the ray of light travels obliquely from one transparent medium to another, the bending of ray of light at the surface of separation of the two media is called the refraction of light.
teachingbd24.com is such a website where you would get all kinds of necessary information regarding educational notes, suggestions and questions’ patterns of school, college and madrasahs. Particularly you will get here special notes of physics that will be immensely useful to both students and teachers. The builder of the website is Mr. Md. Shah Jamal Who has been serving for 30 years as an asst. Professor of BAF Shaheen College. He expects that this website will meet up all the needs of Bengali version learners /students. He has requested concerned both students and teachers to spread this website home and abroad.http://teachingbd24.com/ssc-mcq-question-ans-refraction-light/https://i2.wp.com/teachingbd24.com/wp-content/uploads/2015/02/SSC-Physics-MCQ-Question-Wi.png?fit=250%2C250https://i2.wp.com/teachingbd24.com/wp-content/uploads/2015/02/SSC-Physics-MCQ-Question-Wi.png?resize=250%2C165SSCMCQ Question Ans REFRACTION OF LIGHT,SSC MCQ Question Ans,SSC MCQ Question Ans REFRACTION,SSC MCQ Question Ans REFRACTION OF LIGHTA straight stick appears to be bent when it is obliquely immersed partly in water. If we look directly to the bottom of a jug full of transparent water its bottom seems to be raised up. Of course we observe these phenomena in our everyday life. These events results...Shah JamalShah Jamalsjamal59@gmail.comAdministratorI'm an assistant professor of Physics, Head of the department, in BAF Shaheen College Dhaka since 1984. I'm almost 30 years in the profession of teaching. If you have benefited from my website, please consider to sharing it among your friends.Teaching BD