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L5 : Dispersion by prism - Physics Human Eye, Science Class 10 Video Lecture

FAQs on L5 : Dispersion by prism - Physics Human Eye, Science Class 10 Video Lecture

1. What is dispersion by prism?
Ans. Dispersion by prism refers to the phenomenon where a beam of white light is separated into its constituent colors when it passes through a prism. This occurs because the prism refracts different colors of light by different amounts, causing them to deviate from their original path.
2. How does dispersion by prism occur?
Ans. Dispersion by prism occurs due to the phenomenon of refraction. When a beam of white light enters a prism, it bends or refracts as it passes through the prism. However, different colors of light have different wavelengths, and therefore, they bend or refract by different amounts. This leads to the separation of the white light into its constituent colors.
3. What is the cause of the different colors in dispersion by prism?
Ans. The different colors observed during dispersion by prism are a result of the different wavelengths of each color of light. Each color of light has a different wavelength, with red light having the longest wavelength and violet light having the shortest. As the white light passes through the prism, the different colors are refracted differently due to their varying wavelengths, resulting in the visible spectrum of colors.
4. What is the purpose of studying dispersion by prism?
Ans. The study of dispersion by prism is important in understanding the behavior of light. It helps us comprehend how white light can be separated into its constituent colors and how different colors of light interact with materials. Additionally, this knowledge is crucial in various fields such as optics, photography, and spectroscopy, where the manipulation and analysis of light are essential.
5. How is dispersion by prism related to the human eye?
Ans. Dispersion by prism is closely related to the functioning of the human eye. The eye contains a lens that refracts light, similar to a prism. When light enters the eye, it is refracted by the lens, and the different colors of light are separated. This separation allows the retina to receive different wavelengths of light, which are then processed by the brain to create the perception of color. Therefore, dispersion by prism plays a crucial role in our ability to see and perceive colors.
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