{"ok":true,"q":"Astronomy Basics","n":9,"results":[{"id":"class_08\/science\/chapter_17_stars_and_the_solar_system","title":"Chapter 17 — Stars And The Solar System","class_num":8,"subject":"science","subject_label":"Science","summary":"This chapter introduces basic astronomy and our neighbourhood in space: the stars and the Solar System. It explains what stars are, how they differ in brightness and position (cons","topic":"","anchor":""},{"id":"class_06\/social_science_geography\/chapter_01_the_earth_in_the_solar_system","title":"Chapter 1 — The Earth In The Solar System","class_num":6,"subject":"social_science_geography","subject_label":"Social Science · Geography","summary":"Introduction: This chapter introduces the Earth as one of the planets in the Solar System, explains the Sun as a star that lights and warms the planets, and describes other members","topic":"","anchor":""},{"id":"class_08\/mathematics\/chapter_12_exponents_and_powers","title":"Chapter 12 — Exponents And Powers","class_num":8,"subject":"mathematics","subject_label":"Mathematics","summary":"Introduction: This chapter 'Exponents and Powers' introduces the compact notation for repeated multiplication using exponents (powers). Students learn the language of base and expo","topic":"","anchor":""},{"id":"class_12\/physics\/chapter_01_ray_optics_and_optical_instruments","title":"Chapter 9 — Ray Optics And Optical Instruments","class_num":12,"subject":"physics","subject_label":"Physics","summary":"This chapter (Ray Optics and Optical Instruments) develops the geometric (ray) picture of light and applies it to common optical devices. Starting from laws of reflection and refra","topic":"Astronomical Telescope","anchor":"topic-8"},{"id":"class_08\/social_science_history\/chapter_10_the_changing_world_of_visual_arts","title":"Chapter 10 — The Changing World Of Visual Arts","class_num":8,"subject":"social_science_history","subject_label":"Social Science · History","summary":"Introduction: \"The Changing World of Visual Arts\" examines how visual culture in India transformed from the late 18th century into the 19th and early 20th centuries. Contact with E","topic":"Photography","anchor":"topic-6"},{"id":"class_12\/physics\/chapter_04_atoms","title":"Chapter 12 — Atoms","class_num":12,"subject":"physics","subject_label":"Physics","summary":"This chapter introduces the atomic structure as revealed by early 20th-century experiments and the first successful quantum model of the atom (Bohr model). Beginning with Rutherfor","topic":"Summary and key formulae","anchor":"topic-8"},{"id":"class_12\/physics\/chapter_02_wave_optics","title":"Chapter 10 — Wave Optics","class_num":12,"subject":"physics","subject_label":"Physics","summary":"Chapter: Wave Optics (Class 12 Physics, Physics – Part II) — This chapter develops the wave theory of light and explains optical phenomena that cannot be accounted for by ray optic","topic":"Diffraction Grating","anchor":"topic-10"},{"id":"class_07\/social_science_history\/chapter_01_tracing_changes_through_a_thousand_years","title":"Chapter 1 — Tracing Changes Through A Thousand Years","class_num":7,"subject":"social_science_history","subject_label":"Social Science · History","summary":"This chapter surveys major social, economic, political and cultural changes in India over roughly a thousand years (about 750–1750 CE). It uses a variety of sources — inscriptions,","topic":"Education, Literature and Knowledge Systems","anchor":"topic-10"},{"id":"class_11\/physics\/chapter_07_waves","title":"Chapter 7 — Waves","class_num":11,"subject":"physics","subject_label":"Physics","summary":"Chapter “Waves” (Class XI, Physics – Part II) introduces mechanical waves as organised disturbances that transport energy and information without bulk transport of matter. The chap","topic":"Applications and Examples","anchor":"topic-16"}]}