Physics
High School (11–12)
Optics › Lenses and Optical InstrumentsOptics › Reflection of LightOptics › The Human Eye and VisionOptics › Refraction of LightOptics › Prisms and Dispersion of LightChapter 23Contains Standard contentRay Optics and Optical Instruments
A spoon looks bent in a glass of water, a diamond sparkles, and a rainbow appears after rain. All of these come from light changing direction. This chapter follows the rays: mirrors, refraction and total internal reflection, lenses and prisms, and then the eye, the microscope and the telescope. It covers the unit of the Indian syllabus (NCERT, NEET, JEE Main) and the matching topic of A-Level, IB and AP Physics 2.
Part of Physics · High School (11–12) (chapter 23)
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Reflection and Refraction of Light
Where does the image in a mirror sit, and why does a pool look shallower than it is? Spherical mirrors and the mirror formula, Snell's law, total internal reflection in diamonds and optical fibres, and refraction at a curved surface. It covers the unit of the Indian syllabus (NCERT, NEET, JEE Main) and the matching topic of A-Level, IB and AP.
Lenses, Prisms and Dispersion
How does a magnifying glass make a small thing big, and why does a prism split white light? The lens maker's formula and the thin lens formula, power and combinations of lenses, and the prism with minimum deviation and dispersion, with the rainbow and the colours of the sky. It covers the unit of the Indian syllabus (NCERT, NEET, JEE Main) and the matching topic of A-Level, IB and AP.