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class 12 organic chemistry / general conversion , organic chemistry class 12 . some general conversions which helps you to do all types of question related to conversions .  pdf link-- download pdf some questions for practice .. pdf link -- practice questions

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

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

ATOMS class 12 physics ch 12 revision notes pdf, class 12 physics chapetr 12 ATOMS revision notes pdf file by blue sky . Youtube video- watch video PDF FILE-  Download pdf in this video we cover all the topics ----- what is atom? Thomson atomic model of atom failure of Thomson atomic model Rutherford alpha particles scattering experiment it's observations distance of closest approach impact parameter results of Rutherford's alpha particles scattering experiment. cause of failure of Thomson and Rutherford model. Bohr atomic model postulate of Bohr atomic model mathematical analysis of Bohr atomic model spectrum of hydrogen atom lymon series balmer's series parchen series bracket series pfund series excitation excitation energy excitation potential ionisation energy drawbacks of Bohr atomic model. Introduction to the Bohr Model Bohr model of the atom was proposed by Neil Bohr in 1915. It came into existence with the modification of Rutherford’s model of an

Dual nature of radation and matter ch 11 revision notes pdf . class 12 physics chapter 11 dual nature of radation and matter revision notes pdf by blue sky pcm Youtube video- watch video PDF FILE -  Download PDF YT channel-- youtube This is the best revision video of class 12 physics. Ch -- dual nature of radiation and matter. chapter 11 class 12 physics. in this video we cover all important topics topics covered---- photoelectric effect explanation of photoelectric effect terms related to photoelectric effect free electron work function. threshold frequency threshold wavelength photo sensitive elements experimental study of photoelectric effect effect of intensity of light on the photo current effect of potential on photo electric current it conclusion effect of frequency of incidents light on stopping potential. saturation current stopping potential cut off potential law of photoelectric emissions Einstein photoelectric equation calculation of planks constant from E

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  perturbation . In optics, it is a standard way of estimating diffraction effects. In  radio

Class 12 physics ch 9 RAY optics revision notes pdf ,chapter 9 ray optics and optical instruments revision notes pdf by blue sky . YOUTUBE VIDEO - watch video PDF FILE-  download pdf  all important topics covered. ray optics class 12 Physics revision. this is the 1 part of the chapter . in this we cover all the important topics---- definition of optics, types of optics Ray optics, wave optics properties of light, reflection of light,laws of reflection, types of mirror plane mirror, spherical mirror, convex mirror, concave mirror. important terms related to spherical mirror. pole, radius, of curvature, center of curvature, principal axis, principal focus, relation between focal length and radius. image formation. sign convention, mirror formulas, magnification, linear magnification, lateral magnification,in terms of u,v,f. uses of concave and convex mirror. spherical aberration, refraction,laws of refraction. refractive index, dependence of refractive index physical signif

Electromagnetic wave ch- 8 revision notes class 12, class 12 physics chapter 8 EMW - electromagnetic wave revision notes PDF by blue sky pcm . Youtube video-- watch video PDF NOTES -  click here Class 12 physics chapter 8.| emw | All imp topic revision, Trick for spectrum. | This is the revision video of class 12 physics chapter 8 electromagnetic waves. Hope this video is beneficial for you in this we cover all imp topic-- electromagnetic waves Source of emw properties of emw Maxwell equation of emw displacement current hertz experiment of production of emw energy of emw momentum of emw intensity of emw radiation pressure of emw electromagnetic spectrum different types of emw there uses and methods of production. In physics, electromagnetic radiation (EM radiation or EMR) refers to the waves (or their quanta, photons) of the electromagnetic field, propagating (radiating) through space, carrying electromagnetic radiant energy. It includes radio waves, microwaves, i

Alternating current ch-7 class 12 physics pdf notes ,class 12 physics chapter 7 alternating current revision notes pdf by blue sky pcm  Youtube video- watch video PDF NOTES- download pdf Topics covered in this ---- Alternating current, q--- why AC is used in practice? properties of AC , alternating emf, alternating voltage,mean value of AC , average value of AC, root mean square value of AC , rms value of alternating current, phasors diagram,graphical representation of some AC . rms value of AC , Circuit elements, resistor, inductor, capacitor, resistance, capacitance, inductance. inductive reactance, capacitive reactance. impedance,admittance. different types of AC Circuit. 1- ckt contains resistance only.resistor 2- ckt contains capacitor only. 3- ckt contains inductor only. graph, results,ckt diagram,wave forms. class 12 physics chapter 7 quick revision notes pdf . Alternating current (AC) is an electric current which periodically reverses direction, in c

Ch - 6 EMI class 12 physics revision notes pdf, class 12 physics revision notes pfd chapter - electromagnetic induction . Youtube video - PDF NOTES -  download pdf Magnetic induction" redirects here. It is not to be confused with  magnetic inductance . Faraday's experiment showing induction between coils of wire: The liquid battery  (right)  provides a current that flows through the small coil  (A) , creating a magnetic field. When the coils are stationary, no current is induced. But when the small coil is moved in or out of the large coil  (B) , the magnetic flux through the large coil changes, inducing a current which is detected by the galvanometer  (G) . [1] Electromagnetic  or  magnetic induction  is the production of an  electromotive force  (i.e., voltage) across an  electrical conductor  in a changing  magnetic field . Michael Faraday  is generally credited with the discovery of induction in 1831, and  James Clerk Maxwell  mathematically describ

Magnetism and Matter ch 5 class 12 physics revision notes PDF ,chapter 5 of class 12 physics magnetism and matter revision notes by blue sky PCM YOUTUBE VIDEO-- PDF NOTES-- download notes Magnetism is a class of physical phenomena that are mediated by magnetic fields. Electric currents and the magnetic moments of elementary particles give rise to a magnetic field, which acts on other currents and magnetic moments. Magnetism is one aspect of the combined phenomenon of electromagnetism. The most familiar effects occur in ferromagnetic materials, which are strongly attracted by magnetic fields and can be magnetized to become permanent magnets, producing magnetic fields themselves. Only a few substances are ferromagnetic; the most common ones are iron, cobalt and nickel and their alloys. The prefix ferro- refers to iron, because permanent magnetism was first observed in lodestone, a form of natural iron ore called magnetite, Fe3O4. Although ferromagnetism is responsible for most

Moving charges and magnetism ch 4 revision PDF ,class 12 physics chapter 4 revision notes pdf by blue sky pcm . Youtube video - watch video PDF NOTES -  DOWNLOAD PDF In this we cover the topics--- Physics class 12 chapter 4 (part -1) How magnetic field produced Orested experiments Biot savart law Direction of magnetic field Magnitude of magnetic field due to 1 -- circular loop 2-- circular coil 3-- long straight wire 4-- thigh wire/conductor Current element Ampere circutial law Solenoid,toroid Magnetic force on a moving charge particles Flamingo left hand rule Lorentz force Properties of magnetic field Magnetic force Pitch, frequency, Time period, radius, kinetic energy Force on a current carrying conductor Force b/w two current carrying wires. cyclotron working of cyclotron principle of cyclotron theory of cyclotron cyclotron frequency Velocity filters trajectory of charge particles in electric field torque on a coil placed in a uniform magnetic field magnetic dipole

Current electricity class 12 physics revision notes , chapter 3 class 12 physics revision notes handwritten , blue sky pcm youtube video -- watch video PDF NOTES -- click here All imp topic covered. Topics covered-- Electric current. Types of current. -- average current -- instantaneous current -- Ac - DC - variable current. Current density Ohm's law Resistance Resistivity Conductance Conductivity Drift velocity Mobility Relation b/w drift velocity and current Microscopic form of ohm's law Limitations of ohm's law Ohmic elements Non ohmic elements Effect of temperature on resistivity of conduct and semi conductor Effect of temperature on resistance of conductor and semi conductor Effect of length and area on resistance Combination of resistance Series Parallel Colour coding. YOUTUBE CHANNEL -- WATCH ALL CLASS 12 PHYSICS VIDEOS An electric current is a flow of electric charge. In electric circuits this charge is often carried by moving electrons in a wire. It c