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Syllabus class12th physics (Term-2) (2021-2022)

Important questions of ray optics

Physics classes by Nayan jha providing the syllabus for term -2 CBSE (physics)Examination ; guided by CBSE( Distribution of marks may change in some circumstances)

CBSE Class 12 Physics Syllabus Term – 2 (2021-22)

Time: 2hrs 

Max Marks: 35

SI. No.Chapter Namemarks
Unit–VElectromagnetic Waves2-3
Chapter–8: Electromagnetic Waves
Chapter–9: Ray Optics and Optical Instruments
Chapter–10: Wave Optics 
Unit–VIIDual Nature of Radiation and Matter4-5
Chapter–11: Dual Nature of Radiation and Matter 
Unit–VIIIAtoms and Nuclei6-7
Chapter–12: Atoms
Chapter–13: Nuclei
Unit–IXElectronic Devices7
Chapter–14: Semiconductor -Electronics: Materials, Devices and Simple Circuits

 Unit (i – iv is provided for term-1 examination)

Unit V: Electromagnetic waves   

Chapter–8: Electromagnetic Waves 

Electromagnetic waves, their characteristics, their Transverse nature (qualitative ideas only). Electromagnetic spectrum (radio waves, microwaves, infrared, visible, ultraviolet, X-rays, gamma rays) including elementary facts about their uses. 

Unit VI: Optics   

Chapter–9: Ray Optics and Optical Instruments 

Ray Optics: Refraction of light, total internal reflection and its applications, optical fibers, refraction at spherical surfaces, lenses, thin lens formula, lensmaker’s formula, magnification, power of a lens, combination of thin lenses in contact, refraction of light through a prism. 

Optical instruments: Microscopes and astronomical telescopes (reflecting and refracting) and their magnifying powers. 

Chapter–10: Wave Optics 

Wave optics: Wavefront and Huygens principle, reflection and refraction of plane waves at a plane surface using wave fronts. Proof of laws of reflection and refraction using Huygens principle. Interference, Young’s double slit experiment and expression for fringe width, coherent sources and sustained interference of light, diffraction due to a single slit, width of central maximum. 

Unit VII: Dual Nature of Radiation and Matter  

Chapter–11: Dual Nature of Radiation and Matter 

Dual nature of radiation, Photoelectric effect, Hertz and Lenard’s observations; Einstein’s photoelectric equation-particle nature of light. Experimental study of photoelectric effect Matter waves-wave nature of particles, de-Broglie relation 

Unit VIII: Atoms and Nuclei           

Chapter–12: Atoms 

Alpha-particle scattering experiment; Rutherford’s model of atom; Bohr model, energy levels, hydrogen spectrum. 

Chapter–13: Nuclei 

Composition and size of nucleus Nuclear force Mass-energy relation, mass defect, nuclear fission, nuclear fusion. 

Unit IX: Electronic Devices  

Chapter–14: Semiconductor Electronics: Materials, Devices and Simple Circuits 

Energy bands in conductors, semiconductors and insulators (qualitative ideas only) Semiconductor diode – I-V characteristics in forward and reverse bias, diode as a rectifier; Special purpose p-n junction diodes: LED, photodiode, solar cell.