Refraction of Light
Refraction of Light
When light traveling in a medium (such as air) enters another medium (such as water), it generally bends at the surface separating the two media. But once it is in the second medium, it moves along a straight line. This phenomenon of bending of light at the surface separating two media is commonly known as refraction of light.
The Change in the path of light ray as it passes from one medium to another medium is called refraction of light. If the refracted ray bends towards the normal we say that the Medium 2 is denser than Medium 1.But if the refracted ray bends away from the normal we say that the Medium 2 is rarer than Medium 1. The light ray that falls normally i.e. at right angles from medium 1 to medium 2 then it does not bend or change its path. Such a ray goes undeviated in medium 2.
The surface separating the two media is also called the interface between them. Not the entire light incident on the interface between two media passes into the second medium after refraction; a small part of light gets reflected too.
Cause of Refraction:
Refraction of light takes place due to the change in the speed of light as it enters the medium 2 from medium 1.
Effects of Refraction in Our Day to Day life:
1. A spoon dipped in water. The part of the spoon in air and water appears to be disjoint.
2. While standing in a clear pool of water, the bottom looks raised and our legs appear shorter.
3. The bottom of a glass tumbler filled with water appears raised when viewed from above.
4. If we put pins or coins in a tumbler filled with water and look from the side, their images appear enlarged.
5. Our ability to see also depends on refraction. Our eyes contain several transparent liquids. When light from an object enters our eyes, it is refracted at the surfaces of these liquids to produce an image.
6. Refraction is also responsible for such wonderful things as the twinkling of stars and the sparkling of diamonds.
Illustration: If while standing on the bank of a stream you wished to catch a fish swimming in the water in front of you, would you aim above, below or directly at the observed fish to catch it?
Solution: As the fish is inside the water, so the rays coming are refracted at the surface of water. The fish will appear to be at a higher position. In order to catch the fish we will aim below the position observed.
Which of the following is used for splitting sunlight into seven colors? | |||
| Right Option : C | |||
| View Explanation | |||
Sunlight is : | |||
| Right Option : D | |||
| View Explanation | |||
Which of the following are correct ? (a) This phenomenon of bending of light at the surface separating two media is commonly known as refraction of light . (b) Refraction of light takes place due to the change in the speed of light as it enters the medium 1 from medium 2. (c) An example of the effects of refraction in our day to day life is that the part of the spoon in air and water appears to be disjoint. | |||
| Right Option : C | |||
| View Explanation | |||
Students / Parents Reviews [20]
A marvelous experience with Abhyas. I am glad to share that my ward has achieved more than enough at the Ambala ABHYAS centre. Years have passed on and more and more he has gained. May the centre flourish and develop day by day by the grace of God.
Archit Segal
7thMy experience with Abhyas academy is very nice or it can be said wonderful. I have been studying here from seven class. I have been completing my journey of three years. I am tinking that I should join Abhyas Academy in tenth class as I am seeing much improvement in Maths and English
Hridey Preet
9thBeing a parent, I saw my daughter improvement in her studies by seeing a good result in all day to day compititive exam TMO, NSO, IEO etc and as well as studies. I have got a fruitful result from my daughter.
Prisha Gupta
8thIt was a good experience with Abhyas Academy. I even faced problems in starting but slowly and steadily overcomed. Especially reasoning classes helped me a lot.
Cheshta
10thAbhyas academy is great place to learn. I have learnt a lot here they have finished my fear of not answering.It has created a habit of self studying in me.The teachers here are very supportive and helpful. Earlier my maths and science was good but now it has been much better than before.
Barkha Arora
10thI have spent a wonderful time in Abhyas academy. It has made my reasoning more apt, English more stronger and Maths an interesting subject for me. It has given me a habbit of self studying
Yatharthi Sharma
10thMy experience was very good with Abhyas academy. I am studying here from 6th class and I am satisfied by its results in my life. I improved a lot here ahead of school syllabus.
Ayan Ghosh
8thWhen I have not joined Abhyas Academy, my skills of solving maths problems were not clear. But, after joining it, my skills have been developed and my concepts of science and SST are very well. I also came to know about other subjects such as vedic maths and reasoning.
Sharandeep Singh
7thThird consective year,my ward is in Abhyas with nice experience of admin and transport support.Educational standard of the institute recumbent at satisfactory level. One thing would live to bring in notice that last year study books was distributed after half of the session was over,though study ...
Ayan Ghosh
8thIn terms of methodology I want to say that institute provides expert guidence and results oriented monitering supplements by requsite study material along with regular tests which help the students to improve their education skills.The techniques of providing education helps the students to asses...
Aman Kumar Shrivastava
10thUsually we see institutes offering objective based learning which usually causes a lag behind in subjective examinations which is the pattern followed by schools. I think it is really a work of planning to make us students grab the advantages of modes of examination, Objective Subjective and Onli...
Anika Saxena
8thAbhyas Methodology is very good. It is based on according to student and each child manages accordingly to its properly. Methodology has improved the abilities of students to shine them in future.
Manish Kumar
10thOne of the best institutes to develope a child interest in studies.Provides SST and English knowledge also unlike other institutes. Teachers are co operative and friendly online tests andPPT develope practical knowledge also.
Aman Kumar Shrivastava
10thMy experience with Abhyas is very good. I have learnt many things here like vedic maths and reasoning also. Teachers here first take our doubts and then there are assignments to verify our weak points.
Shivam Rana
7thAbout Abhyas metholodology the teachers are very nice and hardworking toward students.The Centre Head Mrs Anu Sethi is also a brilliant teacher.Abhyas has taught me how to overcome problems and has always taken my doubts and suppoeted me.
Shreya Shrivastava
8thAbhyas is an institute of high repute. Yogansh has taken admission last year. It creates abilities in child to prepare for competitive exams. Students are motivated by living prizes on basis of performance in Abhyas exams. He is satisfied with institute.
Yogansh Nyasi
7thAbhyas institute is one of the best coaching institute in the vicinity of Ambala cantt.The institute provides good and quality education to the students.The teachers are well experienced and are very helpful in solving the problems. The major advantages of the institute is extra classes for weak...
Shreya Shrivastava
8thThe experience was nice. I studied here for three years and saw a tremendous change in myself. I started liking subjects like English and SST which earlier I ran from. Extra knowledge gave me confidence to overcome competitive exams. One of the best institutes for secondary education.
Aman Kumar Shrivastava
10thWe started with lot of hope that Abhyas will help in better understnding of complex topics of highers classes. we are not disappointed with the progress our child has made after attending Abhyas. Though need to mention that we expected a lot more. On a scale of 1-10, we would give may be 7.
Manya
8thIt was good as the experience because as we had come here we had been improved in a such envirnment created here.Extra is taught which is beneficial for future.
