Thursday, 3 May 2018

Physics - Lecture Notes, Study Materials and Important questions answers



Physics
- Lecture Notes, Study Materials and Important questions answers




Subject : Physics

Nature of the Physical World and Measurement

  1. Scope of Physics - Answer (click here)
  2. Physics, Technology and Society - Answer (click here)
  3. Forces of nature - Answer (click here)
  4. Measurement - Answer (click here)
  5. Derived quantities and their units - Answer (click here)
  6. SI standards - Answer (click here)
  7. Rules and conventions for writing SI units and their symbols - Answer (click here)
  8. Expressing larger and smaller physical quantities - Answer (click here)
  9. Determination of distance, mass, time - Answer (click here)
  10. Accuracy and precision of measuring instruments - Answer (click here)
  11. Measurement: Significant figures - Answer (click here)
  12. Measurement: Rounding off - Answer (click here)
  13. Classification of Errors in Measurement - Answer (click here)
  14. Dimensional Analysis - Answer (click here)
  15. Uses and Limitations of Dimensional Analysis - Answer (click here)

Kinematics

  1. Kinematics - Rest and Motion - Answer (click here)
  2. Motion in one dimension (rectilinear motion) - Answer (click here)
  3. Equations of motion - Answer (click here)
  4. Graphical representations - displacement, velocity,acceleration with time graph - Answer (click here)
  5. Representation of a vector quantities - Answer (click here)
  6. Different types of vectors - Answer (click here)
  7. Addition of vectors: Triangle and Parallelogram law of vectors - Answer (click here)
  8. Subtraction of vectors - Answer (click here)
  9. Resolution of vectors and rectangular components - Answer (click here)
  10. Multiplication of two vectors - Answer (click here)
  11. Projectile motion - Answer (click here)
  12. Motion of a projectile thrown horizontally - Answer (click here)
  13. Motion of a projectile projected at an angle with the horizontal (oblique projection) - Answer (click here)
  14. Newton's first law of motion - Answer (click here)
  15. Three types of the inertia - Answer (click here)
  16. Examples for Newton's first law of motion - Answer (click here)
  17. Newton's second law of motion - Answer (click here)
  18. Impulsive force and Impulse of a force - Answer (click here)
  19. Newton's third Law of motion - Answer (click here)
  20. Applications of Newton s third law of motion - Answer (click here)
  21. Proof and Applications of Law of conservation of momentum - Answer (click here)
  22. Concurrent forces and Coplanar forces - Answer (click here)
  23. Parallelogram and Triangle law of forces - Answer (click here)
  24. Experimental verification of triangle law, parallelogram law and Lami's theorem - Answer (click here)
  25. Uniform circular motion - Answer (click here)
  26. Relation between linear velocity and angular velocity - Answer (click here)
  27. Centripetal acceleration, Centripetal force and Centripetal reaction - Answer (click here)
  28. Applications of centripetal forces - Answer (click here)
  29. Banking of curved roads and tracks and Condition for skidding - Answer (click here)
  30. Motion in a vertical circle - Answer (click here)
  31. Motion on a level circular road - Answer (click here)
  32. Work : Work done by a constant force and variable force - Answer (click here)
  33. Potential energy and Kinetic energy - Answer (click here)
  34. Principle of work and energy (work - energy theorem) Statement - Answer (click here)
  35. Conservative forces and non-conservative forces - Answer (click here)
  36. Collision: Types - Elastic collision and Inelastic collision - Answer (click here)

Dynamics of Rotational Motion

  1. Centre of mass - Answer (click here)
  2. Centre of gravity - Answer (click here)
  3. Equilibrium of bodies and types of equilibrium - Answer (click here)
  4. Rotational motion of rigid bodies - Answer (click here)
  5. Rotational kinetic energy and moment of inertia of a rigid body - Answer (click here)
  6. Theorems of moment of inertia : Perpendicular and Parallel axes theorem - Answer (click here)
  7. Moment of a force - Answer (click here)
  8. Couple and moment of the couple (Torque) - Answer (click here)
  9. Angular momentum of a rigid body - Answer (click here)
  10. Relation between torque and angular acceleration - Answer (click here)
  11. Conservation of angular momentum with Illustration - Answer (click here)

Gravitation and Space Science

  1. Newton's law of gravitation - Answer (click here)
  2. Acceleration due to gravity - Answer (click here)
  3. Acceleration due to gravity at the surface of the Earth - Answer (click here)
  4. Variation of acceleration due to gravity - Answer (click here)
  5. Gravitational field: potential difference and potential energy - Answer (click here)
  6. Inertial mass and Gravitational mass - Answer (click here)
  7. Escape speed derivation and with the atmosphere of a planet - Answer (click here)
  8. Satellites: Orbital velocity, Time period and Energy - Answer (click here)
  9. Geo-stationary satellites and Polar satellites - Answer (click here)
  10. Uses of satellites - Answer (click here)
  11. Indian space programme: List of Indian satellites and Indian Launch Vehicles (Rockets) - Answer (click here)
  12. Weightlessness, Rockets - principle and Types of fuels - Answer (click here)
  13. The Solar system - Answer (click here)
  14. Kepler's laws of planetary motion: The law of orbits, areas, periods - Answer (click here)
  15. Size, Surface temperatures, Mass, Atmosphere of the planets - Answer (click here)
  16. Conditions for life on any planet - Answer (click here)
  17. Asteroids, Comets, Meteors and Meteorites inthe Solar system - Answer (click here)
  18. Stars, Constellations, Galaxy in the Solar system - Answer (click here)
  19. Milky Way galaxy - Answer (click here)
  20. Origin of the Universe - Answer (click here)

Mechanics of Solids and Fluids

  1. Mechanics of Solids and Fluids - Answer (click here)
  2. Intermolecular or interatomic forces - Answer (click here)
  3. Elasticity: Stress, strain Elastic limit, Hooke's law - Answer (click here)
  4. Experimental verification of Hooke's law - Answer (click here)
  5. Study of stress - strain relationship - Answer (click here)
  6. Three moduli of elasticity - Answer (click here)
  7. Relation between the three moduli of elasticity - Answer (click here)
  8. Determination of Young's modulusby Searle's method - Answer (click here)
  9. Applications of modulus of elasticity - Answer (click here)
  10. Pressure due to a liquid column - Answer (click here)
  11. Pascal's law and effect of gravity - Answer (click here)
  12. Applications of Pascal's law: Hydraulic lift and brake - Answer (click here)
  13. Co-efficient of viscosity - Answer (click here)
  14. Viscosity: Streamline flow and Turbulent flow - Answer (click here)
  15. Stoke's law (for highly viscous liquids) - Answer (click here)
  16. Determination of coefficient of viscosity of water by Poiseuille's flow method - Answer (click here)
  17. Surface tension: Intermolecular, Cohesive, Adhesive force - Answer (click here)
  18. Experiments to demonstrate surface tension - Answer (click here)
  19. Molecular theory of surface tension - Answer (click here)
  20. Fluid Surface energy and surface tension - Answer (click here)
  21. Pressure difference and pressure inside a liquid drop and a soap bubble - Answer (click here)
  22. Capillarity and Illustrations of capillarity - Answer (click here)
  23. Experimental determination of surface tension of water by capillary rise method - Answer (click here)
  24. Factors affecting and Applications surface tension - Answer (click here)
  25. Total energy of a liquid: Pressure, Kineti, Potential energy - Answer (click here)
  26. Fluid Equation of continuity - Answer (click here)
  27. Bernoulli's theorem - Answer (click here)
  28. Application of Bernoulli's theorem - Answer (click here)

Oscillations

  1. The projection of uniform circular motion on a diameter is SHM - Answer (click here)
  2. Important terms in simple harmonic motion - Answer (click here)
  3. Dynamics of harmonic oscillations - Answer (click here)
  4. Angular harmonic oscillator - Answer (click here)
  5. Horizontal and Vertical oscillations of spring - Answer (click here)
  6. Oscillation of liquid column in a U - tube - Answer (click here)
  7. Oscillations of a simple pendulum - Answer (click here)
  8. Laws of pendulum - Answer (click here)
  9. Kinetic and Potential in simple harmonic motion - Answer (click here)
  10. Types of oscillations - Answer (click here)

Wave Motion

  1. Characteristics of wave motion - Answer (click here)
  2. Mechanical wave motion - Transverse and Longitudinal wave motion - Answer (click here)
  3. Relationship between velocity, frequency and wavelength of a wave - Answer (click here)
  4. Velocity of wave in different media - Answer (click here)
  5. Laplace?s correction - Answer (click here)
  6. Factors affecting velocity of sound in gases - Answer (click here)
  7. Equation of a plane progressive wave - Answer (click here)
  8. Characteristics of progressive wave - Answer (click here)
  9. Progressive wave : Intensity and sound level - Answer (click here)
  10. Applications of reflection of sound waves - Answer (click here)
  11. Applications of refraction of sound - Answer (click here)
  12. Superposition principle of waves - Answer (click here)
  13. Interference of waves - Answer (click here)
  14. Experimental demonstration of interference of sound - Answer (click here)
  15. Beats - Analytical method and Uses of beats - Answer (click here)
  16. Analytical method and Characteristics of stationary waves - Answer (click here)
  17. Standing waves in strings - Sonometer - Answer (click here)
  18. Vibrations of air column in Organ pipes - Answer (click here)
  19. Resonance air column apparatus - Answer (click here)
  20. Doppler effect : Different cases and Applications - Answer (click here)

Heat and Thermodynamics

  1. Heat and Thermodynamics - Introduction - Answer (click here)
  2. Postulates of Kinetic theory of gases - Answer (click here)
  3. Pressure exerted by a gas - Answer (click here)
  4. Degrees of freedom of molecule - Answer (click here)
  5. Law of equipartition of energy - Answer (click here)
  6. Thermal equilibrium - Answer (click here)
  7. Molar specific heat capacity of a gas - Answer (click here)
  8. First law of thermodynamics - Answer (click here)
  9. Relation between Cp and Cv (Meyer's relation) - Answer (click here)
  10. Indicator diagram (P-V diagram) - Answer (click here)
  11. Isothermal process and Workdone in an isothermal expansion - Answer (click here)
  12. Adiabatic process and Work done in an adiabatic expansion - Answer (click here)
  13. Thermodynamic : Reversible and irreversible processes - Answer (click here)
  14. Second law of thermodynamics- Kelvin's, Clausius, Kelvin - Planck's statement - Answer (click here)
  15. Carnot engine - Essential parts, Working, four stages of operations - Answer (click here)
  16. Refrigerator : Coefficient of performance and Inferences - Answer (click here)
  17. Transfer of heat - Conduction, Convection, Radiation - Answer (click here)
  18. Perfect black body - Answer (click here)
  19. Experimental verification of Newton's law of cooling - Answer (click here)
  20. Surface temperature of the Sun - Answer (click here)
  21. Angstrom pyrheliometer - Answer (click here)

Ray Optics

  1. Reflection of light - Answer (click here)
  2. Image in a plane mirror - Answer (click here)
  3. Reflection at curved surfaces - Answer (click here)
  4. Total internal reflection - Answer (click here)
  5. Applications of Total internal reflection - Answer (click here)
  6. Michelson's method - Answer (click here)
  7. Importance of velocity of light - Answer (click here)
  8. Refraction of light - Answer (click here)
  9. Refraction at a spherical surface - Answer (click here)
  10. Lens maker's formula and lens formula and Magnification - Answer (click here)
  11. Combination of thin lenses in contact - Answer (click here)
  12. Refraction of light through a prism - Answer (click here)
  13. Dispersion of light and Dispersive power - Answer (click here)
  14. Spectrometer - Answer (click here)
  15. Basic Parts and Adjustments of the spectrometer - Answer (click here)
  16. Determination of the refractive index of the material of the prism - Answer (click here)
  17. Formation of rainbows - Answer (click here)

Magnetism

  1. Earth?s magnetic field and magnetic elements - Answer (click here)
  2. Basic properties of magnets - Answer (click here)
  3. Force between two magnetic poles - Answer (click here)
  4. Magnetic induction at a point along the axial line due to a magnetic dipole (Bar magnet) - Answer (click here)
  5. Magnetic induction at a point along the equatorial line of a bar magnet - Answer (click here)
  6. Mapping of magnetic field due to a bar magnet - Answer (click here)
  7. Torque on a bar magnet placed in a uniform magnetic field - Answer (click here)
  8. Tangent law - Answer (click here)
  9. End-on (or) Tan A position- Deflection magnetometer - Answer (click here)
  10. Broad?side on (or) Tan B position - Deflection magnetometer - Answer (click here)
  11. Magnetic properties of materials - Answer (click here)
  12. Properties of diamagnetic, paramagnetic, ferromagnetic substances - Answer (click here)
  13. Hysteresis and Hysteresis loss - Answer (click here)
  14. Uses of ferromagnetic materials - Answer (click here)

Electrostatics

  1. Electrostatics - frictional electricity - Answer (click here)
  2. Basic properties of electric charge - Answer (click here)
  3. Definition of Coulomb's law , Principle of Superposition, Electric Field, Electric Field Intensity (E) - Answer (click here)
  4. Electric Field: Definition of Electric lines of force and Properties of lines of forces - Answer (click here)
  5. Electric potential: Definition of Electric potential and Relation between electric field and potential - Answer (click here)
  6. Gauss's law and its applications - Answer (click here)
  7. Electrostatic induction - Answer (click here)
  8. Principle of a capacitor and Energy stored in a capacitor - Answer (click here)
  9. Lightning conductor -Van de Graaff Generator- working principle and construction - Answer (click here)

Current Electricity

  1. Definition of Electric current and discription of Current Electricity - Answer (click here)
  2. Combination of resistors: Resistors in series and parallel - Answer (click here)
  3. Kirchoff's law and Potentiometer - Answer (click here)
  4. Superconductivity Defination and Applications of superconductors - Answer (click here)
  5. Carbon resistors and Colour code for carbon resistors - Answer (click here)
  6. Temperature dependence of resistance and Internal resistance of a cell - Answer (click here)
  7. Electric energy and electric power - Answer (click here)
  8. Faraday's laws of electrolysis | Chemical effect of current | Verification of Faraday's laws of electrolysis - Answer (click here)
  9. Electric cells and Voltaic cell - Answer (click here)
  10. Primary Cell - Daniel cell, Leclanche cell - Answer (click here)
  11. Secondary Cells - Lead - Acid accumulator - Applications of secondary cells - Answer (click here)

Effects of Electric Current

  1. Applications of Joule heating - Answer (click here)
  2. Seebeck effect - Answer (click here)
  3. Neutral and Inversion temperature - Answer (click here)
  4. Peltier effect and Peltier Co-efficient (Ï€) - Answer (click here)
  5. Thomson effect and Thomson coefficient (σ) - Answer (click here)
  6. Thermopile - Answer (click here)
  7. Biot - Savart Law - Answer (click here)
  8. Tangent galvanometer : Theory and Construction of Tangent galvanometer - Answer (click here)
  9. Solenoid and Right hand palm rule - Answer (click here)
  10. Magnetic Lorentz force - Answer (click here)
  11. Cyclotron- Principle, Construction, Working and Limitations of Cyclotron - Answer (click here)
  12. Moving coil galvanometer : Principle, Construction, Pointer type moving coil galvanometer, Current sensitivity of a galvanometer - Answer (click here)
  13. Heating effect : Joule's law - Answer (click here)
  14. Verification of Joule's law - Answer (click here)
  15. Magnetic effect of current - Answer (click here)
  16. Magnetic field around a straight conductor carrying current - Answer (click here)
  17. Magnetic field due to a circular loop carrying current - Answer (click here)
  18. Biot Savart Law and Magnetic induction - Answer (click here)
  19. Ampere's Circuital Law - Answer (click here)
  20. Magnetic induction due to a long solenoid carrying current - Answer (click here)
  21. Magnetic Lorentz force and Cyclotron - Answer (click here)
  22. Motion of a charged particle in a uniform magnetic field - Answer (click here)
  23. Force on a current carrying conductor placed in a magnetic field - Answer (click here)
  24. Force between two long parallel current-carrying conductors - Answer (click here)
  25. Torque experienced by a current loop in a uniform magnetic field - Answer (click here)
  26. Conversion of galvanometer into an ammeter - Answer (click here)
  27. Conversion of galvanometer into a voltmeter - Answer (click here)
  28. Current loop as a magnetic dipole - Answer (click here)
  29. The magnetic dipole moment of a revolving electron - Answer (click here)

Electromagnetic Induction and Alternating Current

  1. AC generator (Dynamo) - Single phase and AC generator (Alternator) - Three phase - Answer (click here)
  2. Eddy currents and Applications of Eddy current - Answer (click here)
  3. Transformer Principle - Efficiency of a transformer - Energy losses in a transformer - Answer (click here)
  4. Electromagnetic induction - Answer (click here)
  5. Magnetic flux - Answer (click here)
  6. Induced emf and current - Electromagnetic induction - Answer (click here)
  7. Faraday's laws of electromagnetic induction - Answer (click here)
  8. Lenz's law - Answer (click here)
  9. Self Induction - Answer (click here)
  10. Coefficient of self induction - Answer (click here)
  11. Self inductance of a long solenoid - Answer (click here)
  12. Mutual induction and Coefficient of mutual induction - Answer (click here)
  13. Methods of producing induced emf - Answer (click here)
  14. AC generator (Dynamo) - Single phase - Answer (click here)
  15. Eddy currents - Answer (click here)
  16. Transformer - Answer (click here)
  17. Long distance power transmission - Answer (click here)
  18. Alternating current - Answer (click here)
  19. AC Circuit with resistor, inductor and capacitor - Answer (click here)
  20. Choke coil: Construction and Working - Answer (click here)

Electromagnetic Waves and Wave Optics

  1. Chandrasekhara Venkata Raman(C.V.Raman) Life - Answer (click here)
  2. Uses of electromagnetic spectrum - Answer (click here)
  3. Types of spectra - Emission spectra, Line spectrum, Band Spectrum, Absorption Spectra - Answer (click here)
  4. Fraunhofer lines - Fluorescence - Phosphorescence - Answer (click here)
  5. Theories of light : Corpuscular theory, Wave theory, Electromagnetic theory, Quantum theory - Answer (click here)
  6. Scattering of light : Tyndal scattering, Raman effect - Answer (click here)
  7. Wave front : Huygen's principle - Answer (click here)
  8. Condition for sustained interference and Young's double slit experiment - Answer (click here)
  9. Newton's rings : Experiment, Theory - Answer (click here)
  10. Fresnel and Fraunhofer diffraction - Answer (click here)
  11. Diffraction grating explanation with Theory - Answer (click here)
  12. Polarisation of transverse waves - Answer (click here)
  13. Double refraction - Answer (click here)
  14. Polaroids explanation and Uses of Polaroid - Answer (click here)
  15. Nicol prism and Types of crystals - Answer (click here)
  16. Optical activity - Answer (click here)
  17. Specific rotation - Answer (click here)
  18. Electromagnetic Waves and Wave optics - Answer (click here)
  19. Characteristics of electromagnetic waves - Answer (click here)
  20. Hertz experiment - Answer (click here)
  21. Types of spectra - Answer (click here)
  22. Theories of light - Answer (click here)
  23. Scattering of light - Answer (click here)
  24. Wave front - Answer (click here)
  25. Superposition principle - Answer (click here)
  26. Diffraction - Answer (click here)
  27. Polarisation - Answer (click here)

Atomic Physics

  1. Discharge of electricity through gases at low pressure - Discovery of electrons - Answer (click here)
  2. Properties of Cathode rays - Answer (click here)
  3. Canal rays and Properties of Positive rays (or) Canal rays - Answer (click here)
  4. Thomson's method - Determination of specific charge (e/m) of an electron - Answer (click here)
  5. Millikan's oil drop experiment - Determination of charge of an electron - Answer (click here)
  6. Thomson atom model and its Drawbacks - Answer (click here)
  7. Rutherford's α - particle scattering experiment - Answer (click here)
  8. Rutherford atom model and its Drawbacks - Answer (click here)
  9. Bohr atom model - Answer (click here)
  10. Spectral series of hydrogen atom and Energy level diagram - Answer (click here)
  11. Excitation and ionization potential of an atom - Answer (click here)
  12. Shortcomings of Bohr's theory - Answer (click here)
  13. Sommerfeld atom model and its Drawbacks - Answer (click here)
  14. Production of X-rays - Modern Coolidge tube - Answer (click here)
  15. Types of X-rays: Soft and Hard X-rays - Answer (click here)
  16. Properties of X-rays - Answer (click here)
  17. Detection, Diffraction and Absorption of X-rays - Answer (click here)
  18. Laue experiment - Answer (click here)
  19. Bragg's law for X-ray diffraction - Answer (click here)
  20. Bragg's X-ray spectrometer - Answer (click here)
  21. X-ray spectra - continuous and characteristic X-ray spectra - Answer (click here)
  22. Moseley's law and Applications of Moseley's law - Answer (click here)
  23. Medical, Industrial and Scientific Applications of X-rays - Answer (click here)
  24. Spontaneous and stimulated emission of Laser - Answer (click here)
  25. Ruby laser - Generation Process and Energy Level - Answer (click here)
  26. Helium neon laser - Generation Process and Energy Level - Answer (click here)
  27. Medical, Industrial and Scientific Applications of laser - Answer (click here)

Dual Nature of Radiation and Matter and Relativity

  1. Photoelectric effect - Dual Nature of Radiation - Answer (click here)
  2. Hallwachs Experiment - photo electric effect - Answer (click here)
  3. Effect of potential difference on the photoelectric current - Answer (click here)
  4. Effect of frequency of incident radiation on stopping potential - Answer (click here)
  5. Laws of photoelectric emission - Answer (click here)
  6. Einstein's photoelectric equation - Answer (click here)
  7. Photoelectric cells and their types, applications - Answer (click here)
  8. de Broglie wavelength of matter waves and an electron - Answer (click here)
  9. Electron microscope: Construction, working, Uses, Limitations - Answer (click here)
  10. Relativity: Concept of Space and Frame of reference - Answer (click here)
  11. Special theory of relativity - Answer (click here)
  12. Einstein's mass-energy equivalence - Answer (click here)

Nuclear Physics

  1. Classification of nuclei and Properties of nucleus Nuclear size - Answer (click here)
  2. Explanation of Nuclear binding energy curve - Answer (click here)
  3. Bainbridge mass spectrometer - Determination of isotopic masses of nuclei - Answer (click here)
  4. Nuclear force and Radioactivity - Answer (click here)
  5. Properties of Alpha α, beta β and gamma γ rays - Answer (click here)
  6. Radioactive displacement law - Answer (click here)
  7. Neutron - Discovery and Properties of neutrons - Answer (click here)
  8. Artificial radioactivity - Answer (click here)
  9. Applications of radio-isotopes - Answer (click here)
  10. Biological hazards of nuclear radiations - Answer (click here)
  11. Artificial radioactivity transmutation and Particle accelerators - Answer (click here)
  12. Geiger - Muller counter: Construction and Operation - Answer (click here)
  13. Energy released in Nuclear fission - Answer (click here)
  14. Radioactive Chain reaction - Answer (click here)
  15. Atom bomb - Principle and construction - Answer (click here)
  16. Nuclear reactor: Design and Function of parts, Uses - Answer (click here)
  17. Nuclear power programme in India - Answer (click here)
  18. Nuclear fusion: Hydrogen bomb and Stellar energy - Answer (click here)
  19. Cosmic Rays: Latitude effect, Altitude effect, Cosmic ray showers - Answer (click here)
  20. Elementary particles of atom - new nuclear particles - Answer (click here)

Semiconductor Devices and their Applications

  1. Semiconductors: Energy band in solids - Answer (click here)
  2. Semiconductors: Valence band, conduction band and forbidden energy gap - Answer (click here)
  3. Insulators, semiconductors and conductors - forbidden energy gap - Answer (click here)
  4. Electrons and holes in semiconductors - Answer (click here)
  5. Intrinsic semiconductor - Answer (click here)
  6. Extrinsic semiconductor: N and P -type semiconductor - Answer (click here)
  7. PN Junction diode: Forward and Reverse bias characteristics - Answer (click here)
  8. PN junction diode as Half wave and Bridge wave rectifier - Answer (click here)
  9. Avalanche and zener Breakdown mechanisms - Answer (click here)
  10. Zener diode and Zener diode as voltage regulator - Answer (click here)
  11. Light Emitting Diode (LED) - Answer (click here)
  12. Junction transistor - Answer (click here)
  13. Working of a PNP transistor - Answer (click here)
  14. Transistor circuit configurations - Answer (click here)
  15. Characteristics of an NPN transistor in common emitter configuration - Answer (click here)
  16. Transistor as a switch - Answer (click here)
  17. Transistor amplifier - Operating point, Working - Answer (click here)
  18. Transistor biasing - Voltage divider bias - Answer (click here)
  19. Single stage CE amplifier - Answer (click here)
  20. Multistage amplifiers - Answer (click here)
  21. Feedback in amplifiers- Principle of feedback and - Answer (click here)
  22. Transistor oscillators - Barkhausen condition for oscillation - Answer (click here)
  23. Generation of sinusoidal waves by a tuned LC circuit - Answer (click here)
  24. Essentials of LC oscillator - Answer (click here)
  25. Colpitt's oscillator - Answer (click here)
  26. Integrated circuit (IC) - Answer (click here)
  27. Digital electronics - Analog signal, Digital signal and logic levels - Answer (click here)
  28. Basic logic gates using discrete components - Answer (click here)
  29. Operational amplifier (OP - AMP) - Answer (click here)
  30. Circuit symbol and Pin-out configuration of an OP-AMP - Answer (click here)
  31. Basic OP-AMP circuits: Inverting, Non-inverting, Summing, Difference amplifier - Answer (click here)
  32. Cathode ray oscilloscope (CRO) - Answer (click here)
  33. Multimeter - Answer (click here)

Communication Systems

  1. Propagation of electromagnetic waves - Answer (click here)
  2. Amplitude modulation (AM): Modulation factor, Analysis, Advantages, Limitations - Answer (click here)
  3. Frequency modulation (FM): Advantages and Disadvantages - Answer (click here)
  4. Phase modulation (PM) - Answer (click here)
  5. Radio transmission - AM, FM transmitter and AF, RF section - Answer (click here)
  6. Radio reception: simple, AM and FM receiver - Answer (click here)
  7. Television: Construction and Working of Vidicon camera tube - Answer (click here)
  8. Television: Scanning and synchronising - Answer (click here)
  9. Monochrome picture tube - Answer (click here)
  10. Monochrome TV transmission - Answer (click here)
  11. Monochrome TV receiver - Answer (click here)
  12. RADAR: Principle, Applications, Transmission and reception of radar - Answer (click here)
  13. Analog communication and digital communication - Answer (click here)
  14. Modem and Fax (or) Facsimile - Answer (click here)
  15. Wire and Cable - Answer (click here)
  16. Fiber optical communication: Advantages, Applications - Answer (click here)
  17. Satellite Communication: Merits and Demerits - Answer (click here)
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