Rainbowoften appears after the rain stops. Rainbow consists of a big bow spectrum and happens from water droplets which reflacted paralel because of the light of the sun. When the sun is shining and the light passing through water droplets, we can see a reflaction because of a wide variety of colors. The light passes and reflact like a light
Dear Readers, “Everybody wants happiness, nobody wants pain, but you can’t have a RAINBOW without a little rain.” Pelangi atau bianglala adalah gejala optik dan meteorologi berupa cahaya beraneka warna saling sejajar yang tampak di langit atau medium lainnya. Di langit, pelangi tampak sebagai busur cahaya dengan ujungnya mengarah pada horizon pada suatu saat hujan ringan. Pelangi juga dapat dilihat di sekitar air terjun yang deras. – Artikel hari ini berisi tentang Explanation Text About RAINBOW Lengkap dengan Terjemahan dan Pembahasan Materi. Temukan materi terkait penjelasan di bawah ini! Explanation Text About RAINBOW Lengkap dengan Terjemahan dan Pembahasan MateriExplanation TextRAINBOWTerjemahanPembahasan Materi Explanation Text RAINBOW Sunlight is a polychromatic light consisting of many colors. The white color of sunlight is actually a combination of various light with different wavelengths. The human eye is able to perceive at least seven colors of sunlight, which will be seen in the rainbow red, orange, yellow, green, blue, indigo and violet. This wavelength of light forms a ribbon of parallel lines, each nuanced color with a color next to it. This band is called the color spectrum. In the color spectrum, the red lines are always on one side and blue and violet on the other, and this is determined by the difference in wavelength. Rainbow is a natural phenomenon that is so impressive. This phenomenon often appears after rain. Rainbow is an arc spectrum which is so large and occurs because the drops are refracted by sunlight. When the sun is shining and the light passing through water droplets, then you will see a refraction that causes a wide variety of colors. Light is refracted like light passing through a glass prism. How does rainbow happen in detail? All the happenings begin when the sunlight passing through the raindrops. Then the light is deflected to the center of the droplet. The white light, now separated from each other into a spectrum of colors. The process does not stop there. The colors that have been separated, then separate again into the very small portions. There is more light separated from each other in the droplets. Then there are more curved and finally those color form a light curve called a rainbow. Rainbow is nothing but an arc of a large circular spectrum of color that occurs due to refraction of sunlight by water grains. When sunlight passes through water droplets, it refracts like when it penetrates a glass prism and comes out into a rainbow color spectrum. So inside the water droplets, we have got different colors lined up from one side to the other. Some of this colored light is then reflected from the far side of the water droplets, returning and exiting again from the water droplets. Light comes back from water droplets in a different direction, depending on the color. The colors on this rainbow are arranged in red at the top and purple at the bottom of the rainbow. Rainbow is seen as a bow from the surface of the earth because of the limited viewing angle of the eye, if the vantage point in a high place, for example from an airplane, can be seen as a complete color spectrum in the form of a circle. The rainbow can only be seen when it rains together with the sun shining but from the opposite side of the observer. The position of the observer must be between the sun and the droplets of water with the sun behind the person. The sun, the eye of the observer, and the center of the rainbow arc must be in a straight line. Can we make a rainbow? Of course. There are at least two ways that you can do to make a rainbow. First, you can use a spray containing water. We know that rainbows occur when sunlight passing through the raindrops. So, we make our own rain droplets from the water spray. In the morning or afternoon, spray water under the sun, then see the water droplets flying. Spray lots of water and you will see a small rainbow that you can touch easily. Second, use pieces of video discs then reflected the light of the sun, and navigate to the wall or ceiling of your house. On the ceiling or the wall, you will see a colorful light that has the same color as the rainbow. That’s the definition of rainbow, how does it happen, and how we can make it true. Terjemahan PELANGI Cahaya matahari adalah cahaya polikromatik terdiri dari banyak warna. Warna putih cahaya matahari sebenarnya adalah gabungan dari berbagai cahaya dengan panjang gelombang yang berbeda-beda. Mata manusia sanggup mencerap paling tidak tujuh warna yang dikandung cahaya matahari, yang akan terlihat pada pelangi merah, jingga, kuning, hijau, biru, nila, dan violet. Panjang gelombang cahaya ini membentuk pita garis-garis paralel, tiap warna bernuansa dengan warna di sebelahnya. Pita ini disebut spektrum warna. Di dalam spektrum warna, garis merah selalu berada pada salah satu sisi dan biru serta violet di sisi lain, dan ini ditentukan oleh perbedaan panjang gelombang. Pelangi adalah sebuah fenomena alam yang begitu mengesankan. Fenomena ini sering muncul setelah hujan. Pelangi merupakan sebuah busur spektrum yang begitu besar dan terjadi karena butir-butir air yang dibiaskan oleh cahaya matahari. Ketika cahaya matahari tersebut bersinar dan melewati butiran air, maka Anda akan menyaksikan sebuah pembiasan yang menyebabkan timbulnya berbagai macam warna. Cahaya tersebut membias layaknya sebuah cahaya yang melewati prisma kaca. Bagaimana proses terjadinya pelangi secara detail? Semua kejadian dimulai ketika cahaya matahari melewati tetesan hujan. Kemudian cahaya tersebut dibelokkan ke bagian tengah dari tetesan tersebut. Cahaya yang sebelumnya putih, kini saling terpisah menjadi sebuah warna spektrum. Prosesnya tidak berhenti hanya disitu saja. Warna-warna yang telah terpisah, kemudian terpisah kembali hingga ke bagian-bagian yang sangat kecil. Ada lebih banyak cahaya yang terpisah satu sama lain di tetesan-tetesan tersebut. Semakin lama, cahaya semakin melengkung dan membentuk kurva yang disebut dengan pelangi. Pelangi tidak lain adalah busur spektrum warna besar berbentuk lingkaran yang terjadi karena pembiasan cahaya matahari oleh butir-butir air. Ketika cahaya matahari melewati butiran air, ia membias seperti ketika menembus prisma kaca dan keluar menjadi spektrum warna pelangi. Jadi di dalam tetesan air, kita sudah mendapatkan warna yang berbeda-beda berderet dari satu sisi ke sisi tetesan air lainnya. Beberapa dari cahaya berwarna ini kemudian dipantulkan dari sisi yang jauh pada tetesan air, kembali dan keluar lagi dari tetesan air. Cahaya keluar kembali dari tetesan air ke arah yang berbeda, tergantung pada warnanya. Warna-warna pada pelangi ini tersusun dengan merah di paling atas dan ungu di paling bawah pelangi. Pelangi terlihat sebagai busur dari permukaan bumi karena terbatasnya sudut pandang mata, jika titik pandang di tempat yang tinggi misalnya dari pesawat terbang dapat terlihat sebagai spektrum warna yang lengkap yaitu berbentuk lingkaran. Pelangi hanya dapat dilihat saat hujan bersamaan dengan matahari bersinar, tetapi dari sisi yang berlawanan dengan si pengamat. Posisi si pengamat harus berada di antara matahari dan tetesan air dengan matahari di belakang orang tersebut. Matahari, mata si pengamat, dan pusat busur pelangi harus berada dalam satu garis lurus. Apakah kita bisa membuat pelangi? Tentu saja. Setidaknya ada tiga cara yang bisa Anda lakukan untuk membuat sebuah pelangi. Pertama, Anda bisa menggunakan semprotan yang berisi air. Kita tahu bahwa pelangi terjadi ketika cahaya matahari melewati tetesan hujan. Jadi, tetesan hujan kita buat sendiri dari semprotan air tersebut. Ketika pagi atau sore, semprotkan air di bagian bawah sinar matahari, kemudian lihat tetesan air yang beterbangan. Semprotkan banyak air dan kamu akan melihat sebuah pelangi kecil yang bisa kamu sentuh. Kedua, gunakan kepingan video disc kemudian pantulkan ke arah cahaya matahari dan arahkan ke dinding atau plafon rumahmu. Di plafon atau dinding tersebut, kamu akan melihat sebuah cahaya warna-warni yang mempunyai warna sama dengan pelangi. Itulah definisi mengenai pelangi, bagaimana itu terjadi, dan bagaimana kita mampu membuatnya. Pembahasan Materi Temukan Pembasahan Materi tentang Explanation Text di sini Semoga artikel ini dapat menambah referensi kalian khususnya tentang Explanation Text.
ContohExplanation Text Rainbow. Rainbow is one of the optical phenomenon that occurs naturally in the earth's atmosphere. Physically, the colors commonly identified from the wavelengths. For example, the red color has a wavelength of about 625-740 nm, and blue around 435-500 nm. Set of colors that are expressed in wavelengths (usually
April DeBord April has taught Spanish and English as a Second Language and she has her Ed. S. in Foreign Language Education. View bio Sarah Pierce Sarah has a doctorate in chemistry, and 12 years of experience teaching high school chemistry & biology, as well as college level chemistry. View bio Learn all about rainbows. Discover the colors of a rainbow and how rainbows form from the interaction of sunlight and water. Then, understand why rainbows end at the horizon when viewed from land, but form a complete circle when viewed from the air. Updated 12/07/2021 Chances are, you've seen a rainbow at some time in your life. If not, don't worry, you likely will at some point! This lesson will teach you how rainbows are formed. First, let's take a look at the colors of the rainbow. One of the first things you probably notice about rainbows is the fact that they have a lot of colors. A quick way to remember the colors of the rainbow is the name 'ROY G. BIV.' The letters stand for the colors that make up the rainbow. R-ed O-range Y-ellow G-reen To unlock this lesson you must be a Member. Create your account Video Quiz Course The sun plays an important part in forming rainbows. The sun shines through the water particles and the water particles act like prisms. A prism is an object that is transparent, or see-through, and when light passes through it, it gets 'bent' or spread out into a bunch of different colors. When white light, which contains all of the colors, gets bent or spread out by a prism, you can see the colors separated out from the white light. Pretty cool, huh? The raindrops work like prisms to bend the light. Then, you can see a rainbow. To unlock this lesson you must be a Member. Create your account Colorful rainbows are formed by sunlight and water particles in the air, which act like prisms, bending white light so you can see all the colors. Remember, rainbows are circles that do not touch the ground, but they always look like they're right on the horizon where the land meets the sky. If you see a glory, you are viewing a rainbow from an airplane or a high mountain and you're able to see the entire circle of the rainbow. To unlock this lesson you must be a Member. Create your account Let's Make a Rainbow! In this activity, we will use a few art supplies to make a rainbow themed craft. This activity will help student visualize a rainbow. Materials Paper plate - cut in half Tempura paint - red, orange, blue, green, violet, yellow, and indigo dark blue Paint brushes 1 inch streamers in rainbow colors Glue Yarn Steps Paint both halves of the papers plates in the shape of a rainbow. Place the colors in the order of the rainbow. Remember, ROYGBIV! Let the paint dry. Attach the streamers to the back of the straight side of each plate using the glue. Make the yarn into a loop and glue it on the back on one plate. Glue the two plates together. Now you have your own rainbow! Hang this in your window to remember the colors of the rainbow. Rainbow Follow-up Questions Do you remember the order of colors in the rainbow? How many colors are there? What season are you most likely to see a rainbow? How can you make a rainbow? Imagine you were a rainbow. Where would you form? How many colors would you have? Would you be a double rainbow, a single rainbow, or a glory? Answer Key Red, Orange, Yellow, Green, Blue, Indigo, and Violet - Remember, ROYGBIV. There are 7 colors. Summer You can use a prism, which causes the colors of white light to spread out. Variable answers. Register to view this lesson Are you a student or a teacher? Unlock Your Education See for yourself why 30 million people use Become a member and start learning now. Become a MemberAlready a member? Log In Back Resources created by teachers for teachers Over 30,000 video lessons & teaching resources‐all in one place. Video lessons Quizzes & Worksheets Classroom Integration Lesson Plans I would definitely recommend to my colleagues. It’s like a teacher waved a magic wand and did the work for me. I feel like it’s a lifeline. Back Create an account to start this course today Used by over 30 million students worldwide Create an account Explore our library of over 88,000 lessons

Presentationabout explanation text that explain How Rainbow is Formed. School: SMAN 2 NGAGLIKClass: XI IPS 1#explanationtext #explanation #rainbow

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Rainbowis one of optic phenomena that happens in the atmosphere of the earth naturally. We can see it at mountin range, or when it is cloudy, or when it is raining and rising of sun. We have to be the other side for looking. We just can see it a half of circle form, but acctually the rainbow is a circle form.
The properties and behaviour of light, and how it interacts with droplets of water, give rise to one of nature's most colourful meteorological events - the all in the geometry... Rainbows are formed when sunlight is scattered from raindrops into the eyes of an observer. Most raindrops are spherical rather than the often depicted 'teardrop' shape and it is this spherical shape that provides the conditions for a rainbow to be seen. The position of the sun and the raindrops in relation to the observer need to be just right for a rainbow to form The sun needs to be behind the viewer The sun needs to be low in the sky, at an angle of less than 42° above the horizon. The lower the sun in the sky the more of an arc of a rainbow the viewer will see Rain, fog or some other source of water droplets must be in front of the viewer The size of the raindrops does not directly affect the geometry of a rainbow, but mist or fog tends to disperse the effect more see fogbows. Rainbows only appear semi-circular over level ground at sunrise or sunset, when the sun is exactly on the horizon, the majority of the time a smaller segment of an arc is seen. The effect of light hitting a raindrop Because water is denser than air, light passing from air to a raindrop at an angle slows and changes direction, in a process called refraction. Sunlight is made up of light of many different wavelengths that slow by different amounts causing the white light to split, or disperse, with the shorter blue and violet wavelengths going through a slightly increased change of direction to the longer wavelengths of the red light. If the angles at which the light enters the droplet are correct, some of the light that enters the droplet will be internally reflected from the inside edge of the drop and will exit the drop, undergoing refraction again as it passes back from water to air. Seeing the rainbow An observer standing in the right place will see the dispersed sunlight reflected back towards them. Light scattered by many drops reaching the observers eye will appear as a colourful rainbow. Different colours exit the droplets at angles varying by around two degrees from red to violet. The red light seen by an observer comes from drops slightly higher in the atmosphere than the drops that scatter violet light towards the observer. The colours seen are not a pure spectrum, there is some mixing and blurring of the colours. The human eye can pick out many hues but it is still common to think of a rainbow as having seven colours, red, orange, yellow, green, blue, indigo and violet ROYGBIV. You can find out more about the colours of the rainbow What are the colours of the rainbow?. Other rainbow phenomena There are many different variations on conventional rainbows that form in certain conditions. You can find more information on them by clicking the links below- What is a double rainbow? What is a fogbow? Full circle rainbow Moonbow
Rainbowsappear in the form of a multicolored bow. When caused by water and sun, rainbows appear on the side of the sky that is directly opposite the sun. They can be full circles at times, but to the average observer, only the arc will be visible. The colors in a rainbow are those found in the color spectrum of white light as it divides.
One of nature's most splendid masterpieces is the rainbow. A rainbow is an excellent demonstration of the dispersion of light and one more piece of evidence that visible light is composed of a spectrum of wavelengths, each associated with a distinct color. To view a rainbow, your back must be to the sun as you look at an approximately 40 degree angle above the ground into a region of the atmosphere with suspended droplets of water or even a light mist. Each individual droplet of water acts as a tiny prism that both disperses the light and reflects it back to your eye. As you sight into the sky, wavelengths of light associated with a specific color arrive at your eye from the collection of droplets. The net effect of the vast array of droplets is that a circular arc of ROYGBIV is seen across the sky. But just exactly how do the droplets of water disperse and reflect the light? And why does the pattern always appear as ROYGBIV from top to bottom? These are the questions that we will seek to understand on this page of The Physics Classroom Tutorial. To understand these questions, we will need to draw upon our understanding of refraction, internal reflection and dispersion. The Path of Light Through a Droplet A collection of suspended water droplets in the atmosphere serves as a refractor of light. The water represents a medium with a different optical density than the surrounding air. Light waves refract when they cross over the boundary from one medium to another. The decrease in speed upon entry of light into a water droplet causes a bending of the path of light towards the normal. And upon exiting the droplet, light speeds up and bends away from the normal. The droplet causes a deviation in the path of light as it enters and exits the drop. There are countless paths by which light rays from the sun can pass through a drop. Each path is characterized by this bending towards and away from the normal. One path of great significance in the discussion of rainbows is the path in which light refracts into the droplet, internally reflects, and then refracts out of the droplet. The diagram at the right depicts such a path. A light ray from the sun enters the droplet with a slight downward trajectory. Upon refracting twice and reflecting once, the light ray is dispersed and bent downward towards an observer on earth's surface. Other entry locations into the droplet may result in similar paths or even in light continuing through the droplet and out the opposite side without significant internal reflection. But for the entry location shown in the diagram at the right, there is an optimal concentration of light exiting the airborne droplet at an angle towards the ground. As in the case of the refraction of light through prisms with nonparallel sides, the refraction of light at two boundaries of the droplet results in the dispersion of light into a spectrum of colors. The shorter wavelength blue and violet light refract a slightly greater amount than the longer wavelength red light. Since the boundaries are not parallel to each other, the double refraction results in a distinct separation of the sunlight into its component colors. The angle of deviation between the incoming light rays from the sun and the refracted rays directed to the observer's eyes is approximately 42 degrees for the red light. Because of the tendency of shorter wavelength blue light to refract more than red light, its angle of deviation from the original sun rays is approximately 40 degrees. As shown in the diagram, the red light refracts out of the droplet at a steeper angle toward an observer on the ground. There are a multitude of paths by which the original ray can pass through a droplet and subsequently angle towards the ground. Some of the paths are dependent upon which part of the droplet the incident rays contact. Other paths are dependent upon the location of the sun in the sky and the subsequent trajectory of the incoming rays towards the droplet. Yet the greatest concentration of outgoing rays is found at these 40-42 degree angles of deviation. At these angles, the dispersed light is bright enough to result in a rainbow display in the sky. Now that we understand the path of light through an individual droplet, we can approach the topic of how the rainbow forms. The Formation of the Rainbow A rainbow is most often viewed as a circular arc in the sky. An observer on the ground observes a half-circle of color with red being the color perceived on the outside or top of the bow. Those who are fortunate enough to have seen a rainbow from an airplane in the sky may know that a rainbow can actually be a complete circle. Observers on the ground only view the top half of the circle since the bottom half of the circular arc is prevented by the presence of the ground and the rather obvious fact that suspended water droplets aren't present below ground. Yet observers in an airborne plane can often look both upward and downward to view the complete circular bow. The circle or half-circle results because there are a collection of suspended droplets in the atmosphere that are capable concentrating the dispersed light at angles of deviation of 40-42 degrees relative to the original path of light from the sun. These droplets actually form a circular arc, with each droplet within the arc dispersing light and reflecting it back towards the observer. Every droplet within the arc is refracting and dispersing the entire visible light spectrum ROYGBIV. As described above, the red light is refracted out of a droplet at steeper angles towards the ground than the blue light. Thus, when an observer sights at a steeper angle with respect to the ground, droplets of water within this line of sight are refracting the red light to the observer's eye. The blue light from these same droplets is directed at a less steep angle and is directed along a trajectory that passes over the observer's head. Thus, it is the red light that is seen when looking at the steeper angles relative to the ground. Similarly, when sighting at less steep angles, droplets of water within this line of sight are directing blue light to the observer's eye while the red light is directed downwards at a more steep angle towards the observer's feet. This discussion explains why it is the red light that is observed at the top and on the outer perimeter of a rainbow and the blue light that is observed on the bottom and the inner perimeter of the rainbow. Rainbows are not limited to the dispersion of light by raindrops. The splashing of water at the base of a waterfall caused a mist of water in the air that often results in the formation of rainbows. A backyard water sprinkler is another common source of a rainbow. Bright sunlight, suspended droplets of water and the proper angle of sighting are the three necessary components for viewing one of nature's most splendid masterpieces. .
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