Rainbows
Rainbows
Rainbows:
A rainbow is perhaps the most beautiful optical phenomenon. It appears as a seven-coloured arc in the sky when there are raindrops in the air. It is visible when the sun is low in the sky (early mornings and late afternoons). To see the rainbow, you have to stand with the sun behind your back.
From where does a rainbow get its colours? The colours come from the dispersion of white light by raindrops suspended in the air. Sunlight entering a drop gets refracted and is split into its component colours. The lights of the component colours travel through the drop and fall on its It other side. A part of these lights get reflected, and a part goes out. (This is not total internal reflection.) The reflected lights again fall on the surface of the drop and get refracted on the way out
Rainbow formation involves the process of | |||
| Right Option : B | |||
| View Explanation |
Which of the following are correct ? (a) Rainbow appears as a seven-coloured arc in the sky when there are raindrops in the air it is visible when the sun is low in the sky . (b) The rainbow get its colours come from the dispersion of white light by raindrops suspended in the air . (c) Rainbow has red at the top and violet at the bottom . | |||
| Right Option : D | |||
| View Explanation | |||
We can see a rainbow the sun should be positioned | |||
| Right Option : B | |||
| View Explanation | |||
Students / Parents Reviews [10]
Being 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
8thMy 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
7thI 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 with Abhyas academy is very good. I did not think that my every subject coming here will be so strong. The main thing is that the online tests had made me learn here more things.
Hiya 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
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
8thA 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
7thIt has a great methodology. Students here can get analysis to their test quickly.We can learn easily through PPTs and the testing methods are good. We know that where we have to practice
Barkha Arora
10thAbhyas is a complete education Institute. Here extreme care is taken by teacher with the help of regular exam. Extra classes also conducted by the institute, if the student is weak.
Om Umang
10thAbout 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.
