https://www.khanacademy.org/science/telangana-class-10-physical-sciencein/x1ac9c643dc8dffee:in-in-10th-physics-light-reflection-refraction/x1ac9c643dc8dffee:reflection-of-light-by-spherical-mirrors/v/laws-of-reflection-in 2025-05-29T08:15:21.460476965Z Laws of reflection Let's understand the laws of reflection! Dubverse video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Laws of reflection Let's understand the laws of reflection! https://cdn.kastatic.org/ka-youtube-converted/_tXiFsl8VOw.mp4/_tXiFsl8VOw.mp4 609 Reflection of Light https://www.khanacademy.org/science/bridge-course-class-10th-science/x37589313f9a4c197:week-4/x37589313f9a4c197:light-reflection-and-refraction/e/lo16-2-reflection 2026-04-07T22:59:30.107127435Z Reflection Class 8 - LO mapped exercise 2 Prakash Aakash Bagga exercise https://www.khanacademy.org/science/telangana-class-10-physical-sciencein/x1ac9c643dc8dffee:in-in-10th-physics-light-reflection-refraction/x1ac9c643dc8dffee:reflection-of-light-by-spherical-mirrors/v/virtual-image-in 2025-05-29T08:15:21.460476965Z Virtual Image Let's understand how virtual images are formed! Dubverse video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Virtual Image Let's understand how virtual images are formed! https://cdn.kastatic.org/ka-youtube-converted/k7JRNpfqEEM.mp4/k7JRNpfqEEM.mp4 473 Reflection of Light https://www.khanacademy.org/science/bmc-grade-9-science/x345505a97fc4a662:reflection-of-light/x345505a97fc4a662:mirrors/e/images-formed-by-plane-mirrors 2026-02-09T06:51:45.841078978Z Images Formed by Plane Mirrors Explore how plane mirrors form images and how multiple reflections create many images. This Class 9 Science exercise covers characteristics of images, mirror arrangements, and numerical reasoning to find the number of images formed when mirrors are inclined at an angle. Perfect for visual and logical understanding of reflection. Yajurva Joshi exercise https://www.khanacademy.org/science/bmc-grade-9-science/x345505a97fc4a662:reflection-of-light/x345505a97fc4a662:plane-mirrors/v/number-of-images-formed-by-two-plane-mirrors 2025-12-22T06:39:33.600696503Z Number of Images Formed by two Plane Mirrors How many images do two plane mirrors form when placed at an angle? Khan Academy video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Number of Images Formed by two Plane Mirrors How many images do two plane mirrors form when placed at an angle? https://cdn.kastatic.org/ka-youtube-converted/qF5map9o2iA.mp4/qF5map9o2iA.mp4 567 Reflection of Light https://www.khanacademy.org/science/bmc-grade-9-science/x345505a97fc4a662:reflection-of-light/x345505a97fc4a662:plane-mirrors/v/minimum-length-of-mirror-required-to-see-one-s-own-image 2025-12-22T06:39:33.600696503Z Minimum Length of Mirror Required to see One's own Image What’s the shortest mirror you need to see your full body? Khan Academy video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Minimum Length of Mirror Required to see One's own Image What’s the shortest mirror you need to see your full body? https://cdn.kastatic.org/ka-youtube-converted/rfH8_qLK9oI.mp4/rfH8_qLK9oI.mp4 448 Reflection of Light https://www.khanacademy.org/science/ap-physics-2/x0e2f5a2c:geometric-optics/x0e2f5a2c:reflection-and-mirrors/v/concave-mirrors 2020-06-23T07:22:43Z Concave mirrors In this video, we will see how concave mirrors focus a parallel beam of light to a single point.  Mahesh Shenoy video https://cdn.kastatic.org/googleusercontent/eECJFW6nPLFwJWVNgQJZ7IdlsGB_ahVfBlNJEd19-dvrE7m4F_cbdkkvKHg_Fc0KQQA0l8XnAXEXy3OmLeSd9IMd Concave mirrors In this video, we will see how concave mirrors focus a parallel beam of light to a single point.  https://cdn.kastatic.org/ka-youtube-converted/7p0_YK7hQ04.mp4/7p0_YK7hQ04.mp4 756 Reflection of Light https://www.khanacademy.org/science/ap-physics-2/x0e2f5a2c:geometric-optics/x0e2f5a2c:reflection-and-mirrors/v/concave-mirror-applications 2020-06-23T07:22:42Z Concave mirror applications In this video, we will look at some applications of concave mirrors.  Mahesh Shenoy video https://cdn.kastatic.org/googleusercontent/ZA06k74xwe8xgm3atmctGRRrsHnj9HqwB5ppW5zwrTH8ggrpj-sWg0CF85LIL2pPnO6mkCb8sT9uU9C6VkHvCLNVJw Concave mirror applications In this video, we will look at some applications of concave mirrors.  https://cdn.kastatic.org/ka-youtube-converted/xhfKsl1WcO4.mp4/xhfKsl1WcO4.mp4 517 Reflection of Light https://www.khanacademy.org/science/ap-physics-2/x0e2f5a2c:geometric-optics/x0e2f5a2c:reflection-and-mirrors/v/convex-mirror-applications 2020-06-23T07:22:40Z Convex mirror & applications When curved mirrors have a reflecting surface on the outside, they are called convex mirrors. (vex stands for bulging out). Let's learn what they do and their applications in our day to day life.  Mahesh Shenoy video https://cdn.kastatic.org/googleusercontent/0gKzo_TzEHe2DPZVQkkzOewglbO8V6fK18QFHAKo6gtA_v-ysNGHy01fXN1zRiheMItndA4SH2-y_c1bXzRsyi4S Convex mirror & applications When curved mirrors have a reflecting surface on the outside, they are called convex mirrors. (vex stands for bulging out). Let's learn what they do and their applications in our day to day life.  https://cdn.kastatic.org/ka-youtube-converted/4sZZYkIwgqg.mp4/4sZZYkIwgqg.mp4 774 Reflection of Light https://www.khanacademy.org/science/ap-physics-2/x0e2f5a2c:geometric-optics/x0e2f5a2c:reflection-and-mirrors/v/spherical-parabolic-mirrors 2020-12-16T15:49:07Z Spherical & parabolic mirrors In this video, we will explore two kinds of curved mirrors, parabolic and spherical mirrors.  Mahesh Shenoy video https://cdn.kastatic.org/googleusercontent/qz6b0nKzhOpf2pyX6pOKZYYpyXVZ16kDGS7QEwc-onME8fNQ-UmAstpC5gagCr8zpAipUKKprxu7hIqTrwjP7MU Spherical & parabolic mirrors In this video, we will explore two kinds of curved mirrors, parabolic and spherical mirrors.  https://cdn.kastatic.org/ka-youtube-converted/djkBahaEHG4.mp4/djkBahaEHG4.mp4 331 Reflection of Light https://www.khanacademy.org/science/ap-physics-2/x0e2f5a2c:geometric-optics/x0e2f5a2c:reflection-and-mirrors/v/spherical-mirrors-radius-of-curvature-focal-length 2020-12-16T15:49:06Z Spherical mirrors, radius of curvature & focal length In this video, we will introduce the terms radius of curvature, and see its connection with focal length. We will also introduce the term principal axis and see the need for it.  Mahesh Shenoy video https://cdn.kastatic.org/googleusercontent/Mw5fCu2i7a7t7ZW3oQnnUucKu8_n8DGS0ZO3J7uRgDbQSZbrtjuSMgY2ew69NU2XIrRuATkeFsBlEKCk7-POGQ2x0A Spherical mirrors, radius of curvature & focal length In this video, we will introduce the terms radius of curvature, and see its connection with focal length. We will also introduce the term principal axis and see the need for it.  https://cdn.kastatic.org/ka-youtube-converted/H1eRmNbTkm0.mp4/H1eRmNbTkm0.mp4 536 Reflection of Light https://www.khanacademy.org/science/in-in-class-12th-physics-india/in-in-ray-optics-and-optical-instruments/in-in-reflection-and-curved-mirrors/e/spherical-mirrors-questions 2026-02-27T12:40:38.792020171Z Spherical mirrors questions Questions pertaining to spherical mirrors Sze Yan exercise https://www.khanacademy.org/science/ap-physics-2/x0e2f5a2c:geometric-optics/x0e2f5a2c:reflection-and-mirrors/v/convex-concave-mirror-ray-diagrams-class-12-india-physics-khan-academy 2020-06-23T07:22:41Z Convex & concave mirror ray diagrams Let's explore the ray tracing technique to figure out the properties of images when things are kept in front of a concave or a convex mirror. Mahesh Shenoy video https://cdn.kastatic.org/googleusercontent/GPjxCr3ZLH3Z8PaJefT4Bhz8QQm218UTSKDzMWGje2AnoT6Ksm-LOX2hXm8c0hA6xjhTCGgsPTdjnpXdfGCSI02A Convex & concave mirror ray diagrams Let's explore the ray tracing technique to figure out the properties of images when things are kept in front of a concave or a convex mirror. https://cdn.kastatic.org/ka-youtube-converted/OHXOwz1NLh0.mp4/OHXOwz1NLh0.mp4 803 Reflection of Light https://www.khanacademy.org/science/ap-physics-2/x0e2f5a2c:geometric-optics/x0e2f5a2c:reflection-and-mirrors/e/ray-diagrams-and-curved-mirrors 2026-04-07T22:59:30.107127435Z Ray diagrams and curved mirrors Let's practice problems involving formation of images by spherical mirrors, using ray diagrams. Satrajit exercise https://www.khanacademy.org/science/ap-physics-2/x0e2f5a2c:geometric-optics/x0e2f5a2c:mirror-formula-and-magnification/v/sign-conventions-for-mirror-lenses 2020-12-16T15:49:06Z Sign convention for mirrors (& lenses) Let's explore the sign conventions (rules to assign +ve and -ve values) we use for mirrors and lenses. These rules are called Cartesian sign conventions. Mahesh Shenoy video https://cdn.kastatic.org/googleusercontent/fsOjTc9-iwrQGTDfriaC6xdV8myBID9W5NAG7Q-twQpefDpBv1SnLQPcrGbufzrQ-Z5WA17LwzSw5JwEIr2RL9E Sign convention for mirrors (& lenses) Let's explore the sign conventions (rules to assign +ve and -ve values) we use for mirrors and lenses. These rules are called Cartesian sign conventions. https://cdn.kastatic.org/ka-youtube-converted/Mc--Yz_YrsU.mp4/Mc--Yz_YrsU.mp4 610 Reflection of Light https://www.khanacademy.org/science/ap-physics-2/x0e2f5a2c:geometric-optics/x0e2f5a2c:mirror-formula-and-magnification/e/sign-conventions 2026-04-07T23:55:07.30621384Z Sign convention Let's practice problems involving the Cartesian sign convention for mirrors and lenses. Satrajit exercise https://www.khanacademy.org/science/in-in-class10th-physics/in-in-10th-physics-light-reflection-refraction/in-in-mirror-formula-derivation-bonus/v/mirror-formula-derivation-class-12-india-physics-khan-academy 2020-12-08T16:00:16Z Mirror formula derivation In this video, we will derive the mirror formula (expression connecting u,v, and f) and magnification formula. We will use a concave mirror to do it. Mahesh Shenoy video https://cdn.kastatic.org/googleusercontent/jcuE2wtco5sG3k2IVmh4sQhirMkGDJMu98w20elbMjtDLMfIVRLyBLwL4tqQXCHyUhIpjvIFLxuVmSrrk_ukrFY Mirror formula derivation In this video, we will derive the mirror formula (expression connecting u,v, and f) and magnification formula. We will use a concave mirror to do it. https://cdn.kastatic.org/ka-youtube-converted/PgQJCm_sXVY.mp4/PgQJCm_sXVY.mp4 577 Reflection of Light https://www.khanacademy.org/science/ap-physics-2/x0e2f5a2c:geometric-optics/x0e2f5a2c:mirror-formula-and-magnification/v/mirror-formula 2020-06-23T07:22:43Z Mirror formula Let's explore the mirror formula (1/f = 1/v+1/u) and see how to locate images without drawing any ray diagrams. Mahesh Shenoy video https://cdn.kastatic.org/googleusercontent/9_sZFtNMVSfDEPpHM6eQnlvhZ3b2kKayTwsXi6P-u6EwwN57M6nKXDU6xG1W51QhBUcGJypOGyAjbP8c_BdwzfBP Mirror formula Let's explore the mirror formula (1/f = 1/v+1/u) and see how to locate images without drawing any ray diagrams. https://cdn.kastatic.org/ka-youtube-converted/EPlr16b4XnQ.mp4/EPlr16b4XnQ.mp4 533 Reflection of Light https://www.khanacademy.org/science/ap-physics-2/x0e2f5a2c:geometric-optics/x0e2f5a2c:mirror-formula-and-magnification/e/using-mirror-formula 2026-04-08T00:36:09.500768563Z Using the mirror formula Let's practice calculating distances in optical measurements with spherical mirrors using the mirror formula. Satrajit exercise https://www.khanacademy.org/science/ap-physics-2/x0e2f5a2c:geometric-optics/x0e2f5a2c:mirror-formula-and-magnification/v/magnification-formula-for-mirrors 2020-06-23T07:22:42Z Magnification formula for mirrors Let's explore how to calculate image height and it's nature (real or virtual) using magnification formula. Mahesh Shenoy video https://cdn.kastatic.org/googleusercontent/89PoSYDrsKTdfC5Q64ddxQdMUCTAhqOIrV5FHVw-OEomchlHdhXG25326V4TS8dn-YkSOGWFjXQ5QKgh4FtG0Dw Magnification formula for mirrors Let's explore how to calculate image height and it's nature (real or virtual) using magnification formula. https://cdn.kastatic.org/ka-youtube-converted/FfvuY8xsO1Y.mp4/FfvuY8xsO1Y.mp4 613 Reflection of Light https://www.khanacademy.org/science/ap-physics-2/x0e2f5a2c:geometric-optics/x0e2f5a2c:mirror-formula-and-magnification/e/using-the-magnification-formula 2026-04-08T00:36:09.500768563Z Using the magnification formula for mirrors Let's practice problems involving the magnification formula for mirrors. Satrajit exercise https://www.khanacademy.org/science/ap-physics-2/x0e2f5a2c:geometric-optics/x0e2f5a2c:mirror-formula-and-magnification/e/nature-of-image-given-magnification 2021-04-29T07:48:49Z Nature and size of images from magnification Let's practice finding out the nature and size of an image given the magnification produced by the mirror. Satrajit exercise https://www.khanacademy.org/science/in-in-class10th-physics/in-in-10th-physics-light-reflection-refraction/in-in-mirror-formula-magnification/v/solved-example-mirror-formula 2020-12-08T16:00:17Z Solved example: Mirror formula We will find the properties of the image formed by a convex mirror. We will do that using the mirror formula and apply sign conventions. Mahesh Shenoy video https://cdn.kastatic.org/googleusercontent/VOwD95bUJnEJqknBwuJO3T37bQ6QtxYmEB6wufL8RRQIYkuHe8XYGA1Loylaw_i2Xpo_xITJ5IuqlLnumQmTV8WVtA Solved example: Mirror formula We will find the properties of the image formed by a convex mirror. We will do that using the mirror formula and apply sign conventions. https://cdn.kastatic.org/ka-youtube-converted/modYmQyA9zo.mp4/modYmQyA9zo.mp4 499 Reflection of Light