- \n
- Sunlight is composed of a spectrum of colors.<\/li>\n\n\n\n
- When sunlight passes through a prism or water droplets in the atmosphere, it can be separated into its constituent colors.<\/li>\n<\/ul>\n<\/li>\n\n\n\n
- Visible Spectrum<\/strong>:\n
- \n
- The colors of the visible spectrum include red, orange, yellow, green, blue, indigo, and violet (ROYGBIV).<\/li>\n\n\n\n
- These colors have different wavelengths, with red having the longest wavelength and violet having the shortest.<\/li>\n<\/ul>\n<\/li>\n\n\n\n
- White Light<\/strong>:\n
- \n
- When all the colors of the visible spectrum are combined in equal proportions, they form white light.<\/li>\n\n\n\n
- This is why sunlight appears white to our eyes when it is not separated.<\/li>\n<\/ul>\n<\/li>\n\n\n\n
- Rainbows<\/strong>:\n
- \n
- Rainbows occur when sunlight is refracted (bent) and dispersed (spread out) by water droplets in the atmosphere.<\/li>\n\n\n\n
- The different colors of a rainbow are a result of this dispersion.<\/li>\n<\/ul>\n<\/li>\n\n\n\n
- Sunsets and Sunrises<\/strong>:\n
- \n
- During sunrise and sunset, sunlight has to pass through more of Earth’s atmosphere, which scatters shorter wavelengths (blue and green) more than longer wavelengths (red and orange).<\/li>\n\n\n\n
- This scattering effect is why we often see red and orange hues during these times.<\/li>\n<\/ul>\n<\/li>\n\n\n\n
- Colors of Objects<\/strong>:\n
- \n
- The colors of objects we see depend on the colors of light they absorb and reflect.<\/li>\n\n\n\n
- A red apple appears red because it absorbs all colors except red, which it reflects.<\/li>\n<\/ul>\n<\/li>\n\n\n\n
- Artificial Light<\/strong>:\n
- \n
- Artificial light sources like incandescent bulbs emit a continuous spectrum of colors and appear white.<\/li>\n\n\n\n
- Some artificial lights, like fluorescent or LED bulbs, may have a slight color tint due to the materials used in their construction.<\/li>\n<\/ul>\n<\/li>\n\n\n\n
- Color Perception<\/strong>:\n
- \n
- The human eye and brain perceive colors based on the wavelengths of light that reach the retina.<\/li>\n\n\n\n
- Our perception of color is a complex interplay of light, cones in the eye, and neural processing.<\/li>\n<\/ul>\n<\/li>\n\n\n\n
- Importance of Sunlight<\/strong>:\n
- \n
- Sunlight is essential for life on Earth, as it provides energy for photosynthesis in plants and helps regulate the circadian rhythms in animals, including humans.<\/li>\n\n\n\n
- It also plays a crucial role in vitamin D synthesis in our bodies.<\/li>\n<\/ul>\n<\/li>\n\n\n\n
- Conclusion<\/strong>:\n
- \n
- Sunlight is, in fact, composed of a variety of colors that can be separated using prisms or raindrops.<\/li>\n\n\n\n
- However, when all these colors are combined in equal proportions, they appear white to our eyes.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n
![\"Chapter](\"https:\/\/edurev.gumlet.io\/ApplicationImages\/Temp\/59_40b6b326-179b-472c-a3c1-682762825ff5_lg.png?w=1024&dpr=0.7\")
<\/figure><\/div>\n\n\nLet’s practice!<\/strong><\/p>\n\n\n\n
![\"\"](\"https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-3-69.png\")
<\/a><\/figure>\n<\/div>\n\n\n\n![\"\"](\"https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-2-64.png\")
<\/a><\/figure>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"