https://www.khanacademy.org/science/odisha-board-preparation-class-10in/x3c214daca98fdd3d:week-3/x3c214daca98fdd3d:the-human-eye-and-the-colorful-world/v/human-eye-features-and-functions 2023-11-30T06:20:11.15616023Z Human eye - features and functions Let's explore the important parts and features of the human eye Mahesh Shenoy video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Human eye - features and functions Let's explore the important parts and features of the human eye https://cdn.kastatic.org/ka-youtube-converted/27txjQwRETI.mp4/27txjQwRETI.mp4 322 The human eye and the colorful world https://www.khanacademy.org/science/odisha-board-preparation-class-10in/x3c214daca98fdd3d:week-3/x3c214daca98fdd3d:the-human-eye-and-the-colorful-world/v/power-of-accommodation 2023-11-30T06:20:11.15616023Z Power of accommodation Let's explore how accommodation helps our eyes focus on various things Mahesh Shenoy video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Power of accommodation Let's explore how accommodation helps our eyes focus on various things https://cdn.kastatic.org/ka-youtube-converted/_4O4VEs7uLU.mp4/_4O4VEs7uLU.mp4 296 The human eye and the colorful world https://www.khanacademy.org/science/up-class-10th-science/x5d08d26681869997:the-human-eye-and-the-colourful-world/x5d08d26681869997:defects-of-vision/v/defects-of-vision 2023-11-30T06:20:11.15616023Z Defects of vision Let's explore myopia (nearsightedness), hypermetropia (farsightedness), and presbyopia (loss of accommodation) Mahesh Shenoy video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Defects of vision Let's explore myopia (nearsightedness), hypermetropia (farsightedness), and presbyopia (loss of accommodation) https://cdn.kastatic.org/ka-youtube-converted/8WUEnoxUw6Y.mp4/8WUEnoxUw6Y.mp4 408 The human eye and the colorful world https://www.khanacademy.org/science/up-class-10th-science/x5d08d26681869997:the-human-eye-and-the-colourful-world/x5d08d26681869997:defects-of-vision/v/numerical-on-defects-of-vision 2023-11-30T06:20:11.15616023Z Numerical on defects of vision Let's solve a few numerical on identifying and correcting defects of vision Mahesh Shenoy video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Numerical on defects of vision Let's solve a few numerical on identifying and correcting defects of vision https://cdn.kastatic.org/ka-youtube-converted/oSu4jPRl09g.mp4/oSu4jPRl09g.mp4 489 The human eye and the colorful world https://www.khanacademy.org/science/in-in-class10th-physics/in-in-the-human-eye-and-the-colourful-world/in-in-dispersion-of-light/v/dispersion 2025-11-19T06:00:41.348624484Z Dispersion The index of refraction in a material isn't always the same for every wavelength. This is how prisms split white light into so many colors. David SantoPietro video https://cdn.kastatic.org/googleusercontent/Zk-PqzT4L3GHwrFBQxO4SRkAjsSETWZwEeS_P07hS8KwnSHw-CGb6E9ExpVfOLzaQ5TWkd8aXNRtcwgDx5jXf1C- Dispersion The index of refraction in a material isn't always the same for every wavelength. This is how prisms split white light into so many colors. https://cdn.kastatic.org/ka-youtube-converted/LksVHUrn8CI.mp4/LksVHUrn8CI.mp4 135 The human eye and the colorful world https://www.khanacademy.org/science/in-in-class10th-physics/in-in-the-human-eye-and-the-colourful-world/in-in-dispersion-of-light-in-prism/v/prism-dispersion-of-light 2021-03-23T22:19:12Z Prism & dispersion of light By doing an experiment let's explore what prisms are and what happens to white light as it passes through a prism.  Mahesh Shenoy video https://cdn.kastatic.org/googleusercontent/PqtknjDuX_6FdIvkEJWkNATXZtGmyCnxnoyyPQIBFEGPkgIzLcWviVHGDlUjuhQEyWhDt0w-idOhAKfgWEfjsLIB Prism & dispersion of light By doing an experiment let's explore what prisms are and what happens to white light as it passes through a prism.  https://cdn.kastatic.org/ka-youtube-converted/3d2C-pDkTEg.mp4/3d2C-pDkTEg.mp4 700 The human eye and the colorful world https://www.khanacademy.org/science/in-in-class10th-physics/in-in-the-human-eye-and-the-colourful-world/in-in-dispersion-of-light-in-prism/v/formation-of-rainbows-how-far-are-they-physics-khan-academy 2020-06-23T07:22:42Z Formation of rainbows (& how far are they) Rainbows are formed by the dispersion of light & reflection (not total internal reflection) from drops of water. The rainbow color sequence can be analyzed by drawing a ray diagram of the refraction of sunlight inside water drops. Mahesh Shenoy video https://cdn.kastatic.org/googleusercontent/h3xrfaPRK3nabthKES6eQjh8wNRffbXypYBzu647lpi2Qalw1G2U9rvxyaDFcNO0n1YpQIAjwe7l2QRupxzHoDu0 Formation of rainbows (& how far are they) Rainbows are formed by the dispersion of light & reflection (not total internal reflection) from drops of water. The rainbow color sequence can be analyzed by drawing a ray diagram of the refraction of sunlight inside water drops. https://cdn.kastatic.org/ka-youtube-converted/HLChkxfSUhI.mp4/HLChkxfSUhI.mp4 862 The human eye and the colorful world https://www.khanacademy.org/science/in-in-class10th-physics/in-in-the-human-eye-and-the-colourful-world/in-in-atmospheric-refraction/v/why-do-stars-twinkle-but-planets-dont 2020-06-23T07:22:42Z Why do stars twinkle (but planets don't)? Let's explore what causes the twinkling effect of stars. We will also explore why planets, sun and moon don't seem to twinkle.  Mahesh Shenoy video https://cdn.kastatic.org/googleusercontent/of79dhOwowz6rpXpDBKHOUccBKjHSC2Wo9zGQnaD2LjYVqDtJxh5wDt-p9Pe72VuBq39Urkls9WvO8buo8KNbZjz Why do stars twinkle (but planets don't)? Let's explore what causes the twinkling effect of stars. We will also explore why planets, sun and moon don't seem to twinkle.  https://cdn.kastatic.org/ka-youtube-converted/73c_0ZAqSU0.mp4/73c_0ZAqSU0.mp4 462 The human eye and the colorful world https://www.khanacademy.org/science/in-in-class10th-physics/in-in-the-human-eye-and-the-colourful-world/in-in-atmospheric-refraction/v/advanced-sunrise-delayed-sunset 2020-06-23T07:22:42Z Advanced sunrise & delayed sunset Why is the sun squashed during sunrise and sunset? Why do we see the sun even before it rises? Our atmosphere is the main cause of this. We will explore these questions in detail.  Mahesh Shenoy video https://cdn.kastatic.org/googleusercontent/gziVHbCGiY9i63QyT5YxMnibSWbi_uZJAlgYuhuAmz5SXFEq06AnOAVyBrtFVJHWESyJwl3W1XIa-OuK5UjqytE9MQ Advanced sunrise & delayed sunset Why is the sun squashed during sunrise and sunset? Why do we see the sun even before it rises? Our atmosphere is the main cause of this. We will explore these questions in detail.  https://cdn.kastatic.org/ka-youtube-converted/7kAzunSPfpg.mp4/7kAzunSPfpg.mp4 544 The human eye and the colorful world https://www.khanacademy.org/science/highschool-physics/x6679aa2c65c01e53:electromagnetic-radiation/x6679aa2c65c01e53:em-radiation-from-the-sun/v/why-is-the-sky-blue 2024-06-03T02:12:27.034454813Z Why is the sky blue? Let's explore why the sky is blue, why the sunset/sunrise is red, why are clouds white. It's all due to scattering of sunlight by the molecules of our atmosphere. Mahesh Shenoy video https://cdn.kastatic.org/ka_thumbnails_cache/9517dbc3-6830-4400-bd6b-50f614b70f79_1280_720_base.png Why is the sky blue? Let's explore why the sky is blue, why the sunset/sunrise is red, why are clouds white. It's all due to scattering of sunlight by the molecules of our atmosphere. https://cdn.kastatic.org/ka-youtube-converted/9-i360iLjEo.mp4/9-i360iLjEo.mp4 606 The human eye and the colorful world https://www.khanacademy.org/science/odisha-board-preparation-class-10in/x3c214daca98fdd3d:week-3/x3c214daca98fdd3d:the-human-eye-and-the-colorful-world/e/the-human-eye-and-the-colorful-world 2026-04-07T23:55:07.30621384Z The human eye and the colorful world Let's practicev vibhor exercise