https://www.khanacademy.org/science/ms-physics/x1baed5db7c1bb50b:waves/x1baed5db7c1bb50b:electromagnetic-waves/v/the-electromagnetic-spectrum 2025-07-01T10:10:08.145512912Z The electromagnetic spectrum Light is an electromagnetic wave. All electromagnetic waves travel at the speed of light in vacuum. The frequency of a light wave corresponds to its color. The amplitude of a light wave corresponds to its brightness. Visible light is only a small part of the electromagnetic spectrum, which also includes radio, microwaves, infrared, ultraviolet, X-rays, and gamma rays. These different frequencies of electromagnetic waves have different applications. Mahesh Shenoy video https://cdn.kastatic.org/ka_thumbnails_cache/e317d099-29e7-41b4-a05c-8f7178545f8b_1280_720_base.png The electromagnetic spectrum Light is an electromagnetic wave. All electromagnetic waves travel at the speed of light in vacuum. The frequency of a light wave corresponds to its color. The amplitude of a light wave corresponds to its brightness. Visible light is only a small part of the electromagnetic spectrum, which also includes radio, microwaves, infrared, ultraviolet, X-rays, and gamma rays. These different frequencies of electromagnetic waves have different applications. https://cdn.kastatic.org/ka-youtube-converted/iVbuCROYAz4.mp4/iVbuCROYAz4.mp4 523 Dispersion of light https://www.khanacademy.org/science/cosmology-and-astronomy/universe-scale-topic/light-fundamental-forces/v/introduction-to-light 2021-01-04T18:35:18Z Introduction to light Light and the electromagnetic radiation spectrum. Wave and particle-like behavior, and how to calculate the wavelength or frequency of a light wave.  Sal Khan video https://cdn.kastatic.org/googleusercontent/cVlKcFz4C0EyjX_DkTGccu23EagJYwwMVWw-oBtmT-CtU9iW8r-KoUvwu9HF_eYB3fgDOp3ER_z2r_umYyjl4xc Introduction to light Light and the electromagnetic radiation spectrum. Wave and particle-like behavior, and how to calculate the wavelength or frequency of a light wave.  https://cdn.kastatic.org/ka-youtube-converted/rLNM8zI4Q_M.mp4/rLNM8zI4Q_M.mp4 577 Dispersion of light https://www.khanacademy.org/science/in-in-class-12th-physics-india/in-in-electromagnetic-waves/in-in-phy-cbse-introduction-to-electromagnetic-waves/a/light-and-the-electromagnetic-spectrum 2021-07-06T13:18:37Z Light: Electromagnetic waves, the electromagnetic spectrum and photons Properties of electromagnetic radiation and photons article https://www.khanacademy.org/science/ms-physics/x1baed5db7c1bb50b:waves/x1baed5db7c1bb50b:electromagnetic-waves/a/electromagnetic-waves 2025-07-29T19:34:30.550399976Z Electromagnetic waves Learn about electromagnetic waves, including visible light waves. Explore the ray model and use it to model different behaviors of light. article https://www.khanacademy.org/science/grade-8-science-snc-aligned/xa9b0f40dbc1bb08e:reflection-and-refraction-of-light/xa9b0f40dbc1bb08e:dispersion-of-light/v/dispersion-rainbows-ur 2025-08-08T00:50:08.705567982Z Dispersion (& rainbows) Created by Khan Academy video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Dispersion (& rainbows) Created by Khan Academy https://cdn.kastatic.org/ka-youtube-converted/5eue4t---d4.mp4/5eue4t---d4.mp4 385 Dispersion of light https://www.khanacademy.org/science/bmc-grade-10-science/x4e98504963be64d8:refraction-of-light/x4e98504963be64d8:dispersion/v/prism-dispersion-of-light-ur 2025-08-08T00:50:08.705567982Z Prism & dispersion of light Created by Khan Academy video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Prism & dispersion of light Created by Khan Academy https://cdn.kastatic.org/ka-youtube-converted/uhzHZNBFV54.mp4/uhzHZNBFV54.mp4 700 Dispersion of light https://www.khanacademy.org/science/grade-10-physics-snc-aligned/x502b86fa259f0088:geometrical-optics/x502b86fa259f0088:dispersion-of-light-by-prism/v/formation-of-rainbows-how-far-are-they-ur 2025-08-08T00:50:08.705567982Z Formation of rainbows (& how far are they) Created by Khan Academy video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Formation of rainbows (& how far are they) Created by Khan Academy https://cdn.kastatic.org/ka-youtube-converted/uvkUbU82AIE.mp4/uvkUbU82AIE.mp4 862 Dispersion of light https://www.khanacademy.org/science/in-in-class-10-physics-india-hindi/in-in-the-human-eye-and-the-colourful-world-hindi/dispersion-of-light-in-prism-hindi/e/rainbows 2026-04-08T00:16:02.937952483Z Rainbows Let's practice problems to better understand how rainbows form. Satrajit exercise