Geometric Optics (Physics, AP, VCE, JEE, NEET, IB)

This video provides and introduction to geometric optics, including an intro to waves, wavefronts and light rays, overview of the electromagnetic spectrum, how to derive the law of reflection, and diffuse vs specular reflection. 0:00 Intro to waves, light rays, EM spectrum 5:27 Deriving the law of reflection 10:12 Diffuse vs specular reflection

This video explains image formation by mirrors, including the mirror formula or equations, worked example practice question, rule, type of image formed behind a mirror, plane, spherical, parabolic, concave and convex mirrors, and principal rays. 0:00 Mirrors and images 9:07 Mirror equation 16:46 Ray diagrams, principal rays 19:09 Worked example

This video explains Snell's law of refraction in simple terms, including formula, equation, what is n1 and n2, and worked example practice problems. The critical angle is defined, which is the condition for total internal reflection i.e. where no refraction occurs in the second medium. 0:00 Refraction and Snell's law 8:48 Total internal reflection, critical angle 12:33 Worked example

This video explains thin lenses which are used in glasses, including equation derivation, magnification, formula for concave and convex lens (1 o 1 i), the thin lens approximation, real and virtual image formation and distance, and the principal rays. 0:00 Thin lenses and images 5:27 Thin lens equation 10:52 Ray diagrams and principal rays