https://www.khanacademy.org/science/ap-physics-2/x0e2f5a2c:waves-sound-and-physical-optics/x0e2f5a2c:diffraction-and-interference-of-light/v/youngs-double-split-part-1 2023-09-10T17:11:17.624018169Z Young's double slit introduction We can see interference in action if we shine laser light through two slits onto a screen. Explore Young's Double Slit experiment, a cornerstone in understanding light as a wave. Discover how light waves spread out, overlap, and create patterns of constructive and destructive interference. Uncover the rules of wave interference in two dimensions, and how path length differences lead to these intriguing patterns. David SantoPietro video https://cdn.kastatic.org/googleusercontent/chea_G38Vclpluh6PkuEjWSI2Zc1HPZhCUKb1Baj4lQwmD9uFhqGSHyI1UixOVy0aqIuyg_nFlw5FSnGxrTMmd4WzQ Young's double slit introduction We can see interference in action if we shine laser light through two slits onto a screen. Explore Young's Double Slit experiment, a cornerstone in understanding light as a wave. Discover how light waves spread out, overlap, and create patterns of constructive and destructive interference. Uncover the rules of wave interference in two dimensions, and how path length differences lead to these intriguing patterns. https://cdn.kastatic.org/ka-youtube-converted/Pk6s2OlKzKQ.mp4/Pk6s2OlKzKQ.mp4 573 Wave and quantum interference: double-slit and diffraction experiments https://www.khanacademy.org/science/ap-physics-2/x0e2f5a2c:waves-sound-and-physical-optics/x0e2f5a2c:diffraction-and-interference-of-light/v/youngs-double-slit-part-2 2023-09-10T17:11:17.624018169Z Young's double slit equation Let's derive a formula that relates all the variables in Young's double slit experiment as we explore Young's Double Slit Equation. Uncover how light's path length difference relates to the angle of incidence, and how this leads to constructive and destructive interference. Apply this knowledge to the world of wave patterns, trigonometry, and the wonders of diffraction! David SantoPietro video https://cdn.kastatic.org/googleusercontent/UFOykr6f5ywqeJL__EDEJsHkIXBisI6k_E4Wlm9wkoScaAV4bckWsjXmfaX-yntsNfsdiTv3im3sywnaFUxjBS13 Young's double slit equation Let's derive a formula that relates all the variables in Young's double slit experiment as we explore Young's Double Slit Equation. Uncover how light's path length difference relates to the angle of incidence, and how this leads to constructive and destructive interference. Apply this knowledge to the world of wave patterns, trigonometry, and the wonders of diffraction! https://cdn.kastatic.org/ka-youtube-converted/1abpdO27KTo.mp4/1abpdO27KTo.mp4 401 Wave and quantum interference: double-slit and diffraction experiments https://www.khanacademy.org/science/ap-physics-2/x0e2f5a2c:waves-sound-and-physical-optics/x0e2f5a2c:diffraction-and-interference-of-light/v/single-slit-interference 2023-09-10T17:11:17.624018169Z Single slit interference What happens when there's only one hole? Explore the concept of Single Slit Interference in light waves. Uncover how waves spread out at a hole due to Huygen's Principle, leading to diffraction. Understand how each point on a wavefront acts as a source of another wave, creating an interference pattern, and examine the math behind destructive points and the role of slit width in wave interference. David SantoPietro video https://cdn.kastatic.org/googleusercontent/-M-oj2rDm1rYn1zrx_0gdOmEHvTHZGtUkvlM__kp4DJP6aIokKGI2CAb_i7_pZiNgmmq586oCsXE-7fspuP-mwfM Single slit interference What happens when there's only one hole? Explore the concept of Single Slit Interference in light waves. Uncover how waves spread out at a hole due to Huygen's Principle, leading to diffraction. Understand how each point on a wavefront acts as a source of another wave, creating an interference pattern, and examine the math behind destructive points and the role of slit width in wave interference. https://cdn.kastatic.org/ka-youtube-converted/7CmbItRjM-Y.mp4/7CmbItRjM-Y.mp4 900 Wave and quantum interference: double-slit and diffraction experiments https://www.khanacademy.org/science/ap-physics-2/x0e2f5a2c:waves-sound-and-physical-optics/x0e2f5a2c:diffraction-and-interference-of-light/v/diffraction-grating 2023-09-10T17:11:17.624018169Z Diffraction grating What happens when there's way more than two holes? Uncover the power of diffraction gratings. Learn how adding more slits to a double slit experiment results in sharper, brighter interference patterns. Understand why this occurs and its significance in measuring light waves. David SantoPietro video https://cdn.kastatic.org/googleusercontent/9GRBUyFsaBGvBoB9uLCJ7SFOlveyJQMdYSTeRn1COv1CtWM9jjDURUVMy5B6_QHfnVwKNasZ8LiTECmN6YDd4awF Diffraction grating What happens when there's way more than two holes? Uncover the power of diffraction gratings. Learn how adding more slits to a double slit experiment results in sharper, brighter interference patterns. Understand why this occurs and its significance in measuring light waves. https://cdn.kastatic.org/ka-youtube-converted/F6dZjuw1KUo.mp4/F6dZjuw1KUo.mp4 861 Wave and quantum interference: double-slit and diffraction experiments https://www.khanacademy.org/science/ap-physics-2/x0e2f5a2c:waves-sound-and-physical-optics/x0e2f5a2c:diffraction-and-interference-of-light/v/youngs-double-slit-problem-solving 2023-09-10T17:11:17.624018169Z Young's double slit problem solving Continue to explore Young's double slit equation through a sample problem involving a double slit experiment. See how light waves of specific wavelengths interact when they pass through two slits, creating a pattern of bright spots on a screen. Get insights into the math behind calculating these distances and understand the impact of changing slit spacing. David SantoPietro video https://cdn.kastatic.org/googleusercontent/at4VWaJBPjZ-5DUp5Gg3TnI_0rLD8z5MttV5JHIbTDm4NhqL8Cqrt7iDCncVZDvtXNqakjUJEsgV0UqKkwXQGUWD Young's double slit problem solving Continue to explore Young's double slit equation through a sample problem involving a double slit experiment. See how light waves of specific wavelengths interact when they pass through two slits, creating a pattern of bright spots on a screen. Get insights into the math behind calculating these distances and understand the impact of changing slit spacing. https://cdn.kastatic.org/ka-youtube-converted/5-2RZsU8e3U.mp4/5-2RZsU8e3U.mp4 429 Wave and quantum interference: double-slit and diffraction experiments https://www.khanacademy.org/science/ap-physics-2/x0e2f5a2c:waves-sound-and-physical-optics/x0e2f5a2c:diffraction-and-interference-of-light/e/calculate-path-difference-in-ydse 2026-04-07T22:59:30.107127435Z Calculate path difference in YDSE Let's practice some problems to better understand the relationship between path difference and various geometrical parameters in Young's double-slit experiment. Satra exercise