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Communication system class 12 physics revision notes

Communication system class 12 physics revision notes, class 12 physics chapter 15 , now 14 - revision notes pdf by blue sky pcm, blue sky posts . Youtube video - watch video PDF FILE --  Pdf file topics covered---- definition of communication system block diagram of modern communication signals, transmitter, receivers, communication channel, bandwidth,no. of channel, noise, transducer, attenuation, amplification, range, baseband, repeater, modulation,mode of communication. point to point point to many earth's atmosphere propogation of EMW types of modes of propogation. ground wave propagation, sky wave propagation, space wave propagation,line of sight, satellite communications, ionosphere, troposphere, transmitter receiver, critical frequency,skip distance, fading, modulation,need for modulation, types of modulation amplitude modulation frequency modulation phase modulation. expression for amplitude modulation side bands., upper side bands, Lower side bands,band width...
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Wave Optics class 12 physics ch 10 revision notes pdf

Wave Optics class 12 physics ch 10 revision notes pdf , class 12 physics chapter 10 wave optics revision notes pdf by blue sky . Youtube video -- PDF NOTES- download file Physical optics  is also the name of an  approximation  commonly used in optics,  electrical engineering  and  applied physics . In this context, it is an intermediate method between  geometric optics , which ignores  wave  effects, and full wave  electromagnetism , which is a precise  theory . The word "physical" means that it is more physical than  geometric  or  ray  optics and not that it is an exact physical theory. [1] :11–13 This approximation consists of using ray optics to estimate the field on a surface and then  integrating  that field over the surface to calculate the transmitted or scattered field. This resembles the  Born approximation , in that the details of the problem are treated as a  perturbati...
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NUCLEI class 12 physics ch 13 revision notrs pdf

NUCLEI class 12 physics ch 13 revision notrs pdf , class 12 physics revision notes of chapter 13 NUCLEI by blue sky pcm , blue sky posts YOUTUBE VIDEO- watch video PDF FILE-  PDF notes all the important topics covered . topics covered---- Nucleus, composition of nucleus,mass of protons,mass of neutron, charge of protons, charge of neutron, mass and charge of electron. atomic number,mass number, size of nucleus, volume of nucleus,nuclear mass,nuclear density, atomic mass unit , mass energy relationship. mass defect, isotopes, isobars,isotones, binding energy, binding energy per nucleon , stability of nucleus, important feature of binding energy curve. Nuclear force. it's properties, charge independent, radioactivity, nuclear radiation, alpha particles,beta particles,gamma particles,rays comparison of alpha, beta and gamma. laws of radioactive disintegration. radioactive decay constant. radioactive decay law. half life, full life, average life,mean life activity, Nucl...
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