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EAMCET

# Engineering, Agriculture and Medical Common Entrance Test (EAMCET) Physics Syllabus:

Unit 1. Units and dimensions

Fundamental units in the CGS & SI systems - Definitions of SI Units - Supplementary and derived units - Dimensions of Physical quantities - Application of Dimensional Analysis - uses - examples - Limitations of dimensional analysis.

Errors in measurements - variation and average values - Number of observations - Ideas of standard deviation and mean deviation- Systematic and random errors - Significant figures and rounding off - Evaluation of percentage of errors.
Unit 2. Elements of vectors

Addition and subtraction of Vectors - Laws of addition of vectors - Equal and null vectors - Unit vectors - Unit vectors in Cartesian co-ordinate system - Position vector and its magnitude - Parallelogram law of vectors - Expression for the resultant vector.

Triangle law and polygon law of vectors - Application to relative motion of a boat in a river - Multiplication of a vector with scalar. Scalar product with Examples of work and energy. Vector product with examples of torque and angular momentum.

Vector and Scalar products of unit vectors.
Unit 3. Kinematics-Dynamics

Equations of motion in a straight line under uniform acceleration - Equation of motion of freely falling body, vertically projected body from ground and from a height - Two dimensional motion - Projectiles with examples - Path of a projectile - maximum height, time of flight and range.

Newton's Laws of motion - Concepts of inertia, momentum force, impulse and types of forces - Collision of two bodies in one dimension - one body at rest - two bodies moving in the same and opposite directions - Elastic and inelastic collisions - Coefficient of restitution.
Unit 4. Work, Power, and Energy

Definition and units - Expressions for P.E. & K.E. - Work-energy theorem - Law of conservation of energy.
Unit 5. Centre of Mass

Definition - Co-ordinates of center of mass - Velocity, Acceleration - Characteristics of center of mass - Examples in the case of two dimensional motions - Laws of motion of center of mass - Explosion.
Unit 6. Friction

Causes of friction - Static, Kinetic and rolling friction - laws of friction - expressions for acceleration of a body on smooth and rough inclined planes (without rolling).
Unit 7. Rotatory motion

Rotatory motion -Relationships between quantities in rotatory and linear motions - Centripetal and centrifugal forces - Concepts of torque and couple - Relation between angular momentum and torque - Moment of inertia - Rotational kinetic energy - Parallel and perpendicular axes theorems - Expressions for the Moment of inertia of a thin rod, sphere, circular ring, uniform disc., cylinder and rectangular lamina - Conservation of angular momentum with examples - Motion in a vertical circle.
Unit 8. Gravitation

Kepler's laws of planetary motion - Newton's universal law of gravitation - Expression for the relation between g & G - Variation of 'g' with height, depth, latitude and local conditions. Inertial and gravitational masses - Escape velocity and orbital velocity - geo-statonary satellites and their uses.
Unit 9. Simple Harmonic motion

Definitions and examples - Expressions for displacement, velocity, acceleration, time period and frequency - Expressions for the period of a simple pendulum and loaded spring - Force constant - Expressions for the KE & PE of a body in SHM.
Unit 10. Elasticity

Elasticity & plasticity - Stress - Strain, Hookes law - Modulii of elasticity (Y,n,K) - Poisson's ratio (s) - Relation between Y,n,K and s - Behaviour of wire under gradually increasing load - elastic fatigue - expression for strain energy - experimental determination of Y by Searle's apparatus.

Unit 11. Surface Tension

Surface tension - Definition and examples - Molecular Phenomenon - Angle of contact - Capillarity with examples in nature - Experimental determination of Surface Tension by capillary rise method with necessary theory - variation of Surface Tension with temperature - Expressions for excess pressure inside a drop and a bubble.

Unit 12. Hydrodynamics

Principle of Buoyancy - Pressure in a fluid - Bernoulli's theorem - Aerodynamic lift and motion of spinning ball.

Unit 13. Viscosity

Stream line flow - Explanation of viscosity - Poiseuille's equation - determination of co-efficient of Viscosity - Variation with temperature.

Unit 14.
Expansion of Solids- Liquids-Gases

Three coefficients of expansion of solids their inter relationship - Determination of coefficient of linear expansion by mechanical lever method - Application to Bimetallic thermostat.

Coefficients of real and apparent expansion of liquids and the relation between them - Variation of density with temperature - Anomalous expansion of water and its effects - Experimental determination of real and apparent coefficients by Regnault's method and specific gravity bottle.

Volume and pressure coefficients of expansion of gases - Experimental determination of volume and pressure coefficients by Regnault's & Jolly's bulb apparatus - Absolute zero - Kelvin's scale of temperature - Boyle's law and Charle's law - Ideal gas equation.

Unit 15. Thermodynamics

Definition of calorie, thermal capacity, specific heat and latent heats - Law of mixtures - Problems relating to specific heats and latent heats and law of mixtures - Joule's law and Mechanical equivalent of Heat (J). Three phases of matter and Triple point of water - Definition of specific heats of gases Cp & Cv - Isothermal and Adiabatic processes - Relationships between P,V & T - External work done by an ideal gas during expansion - Internal energy - Statements and explanation of Zeroeth law, First and Second laws of thermodynamics - Relation Cp-Cv = R.

Nature and properties of thermal Radiation - Prevost's theory of heat exchanges - Emissive and absorptive powers - Black body radiation - Kirchoff's law and its application - Newton's law of cooling - Laws of Black body radiation - Stefan's law, Weien's displacement law and Planck's formula (qualitative treatment only)

Unit 17.Sound

Propagation of sound - Wave equation -Velocity of sound in solids, liquids and gases - Variation of velocity of sound in gases with temperature, pressure, density and humidity. Natural and Forced vibrations - Resonance with examples - Formation of stationary waves in stretched strings - Laws of transverse waves along stretched strings - Experimental verification by sonometer - Beats - Definition and explanation (Theory only) - Doppler effect - Formulae for apparent frequency in specific cases - Applications and limitations of Doppler effect.
Unit 18. Geometrical Optics

Determination of velocity of light by Focault's rotating mirror method - Its significance - Critical angle - Total internal reflection - Application to optical fibres.

Lens maker's formula 1/f = (m -1) (1/R1+ 1/R2) - Defects of images - Spherical and Chromatic aberrations and their elimination (Qualitative treatment) - Construction of Ramsden's and Huygens eye pieces. Dispersion of light - Formula for refractive index of prism - Pure and impure spectra - arrangement to obtain pure spectrum -

Description and working of spectrometer - Determination of angle of a prism - Angle of minimum deviation and Refractive index - Dispersive power of a prism.

Different kinds of spectra - Emission spectra-Line, Band and Continuous spectra- Absorption spectra - their significance - Fraunhoffer lines and their significance.

Unit 19.Physical Optics

Nature of light - Newton's corpuscular theory - Huygen's wave theory - Electromagnetic theory Quantum Theory (Elementary ideas only) - Interference - Coherent sources - Young's double slit experiment - Phenomenon of diffraction - Fresnel and Fraunhoffer diffraction - Diffraction at straight edge ( qualitative treatment) - Polarization - Concepts of polarization - Production of plane polarized light by reflection and double refraction (Polaroids).

Unit 20. Magnetism

Magnetic pole strength - Inverse square law - Magnetic induction B - Formulae for magnetic induction on axial and equatorial line of a bar magnet and a very short bar magnet - Couple acting on a bar magnet placed in a uniform magnetic field - Magnetic moment of a magnet - Tangent law - Deflection magnetometer - Comparison of magnetic moments in Tan A and Tan B positions by equal distance method and null method - Verification of Inverse square law - vibration magnetometer - Experimental determination of M and BH.

Magnetic materials Dia, Para, Ferro, Antiferro and Ferrimagnetism - their properties - Electron theory of magnetism (qualitative treatment) - Permeability and Susceptibility (concepts only).

Unit 21. Electro Statics

Coulomb's law - permittivity- Concept of electric field - Electric lines of force.

Force on a charge in an electric filed ( F=Eq) - Electric potential - Potential due to a point charge - Potential energy of a point charge in a uniform electric field - Electron volt - Relation between E and V ( E =v/d) Capacitance, Dielectric constant - Parallel plate capacitor - Formula for Capacitance - Effect of di- electric on capacity (expressions only) - Formulae for resultant capacitance when capacitors are connected in series and parallel - Energy stored in a capacitor - Effect of dielectric on the energy - Types of capacitors and their uses.

Unit 22. Current Electricity

Ohm's law - Specific resistance - Conductance - Temperature dependence of resistivity - Thermistor - Emf of a cell - Internal resistance and back emf.

Kirchoff's laws - Statement and explanation - Application to Wheatstone's bridge for its balance condition - Metre bridge - Principle of potentiometer - Comparison of emf's of cells. Determination of internal resistance of a primary cell.

Unit 23. Thermo Electricity

Seebeck effect - Peltier and Thomson effects and their coefficients - Variation of thermo emf with temperature - Neutral and Inversion temperatures. Application of thermo couples.

Unit 24. Electro Magnetics

Oersted's experiment - Biot Savart law - The Tesla Ampere law - Magnetic field near a long straight wire and at the center of a circular coil carrying current (expressions only) - Force on a moving charge in a magnetic field (F = Q V X B ) - Force on a current carrying conductor in a magnetic filed - Force between two straight parallel conductors carrying current - Definition of Ampere - Fleming's left hand rule - Force and Torque on current loop in a magnetic filed - Tangent Galvanometer expression for the current construction and working of a moving coil galvanometer - Shunt and its uses - Conversion of moving coil galvanometer into ammeter and voltmeter. Comparison of Moving Coil Galvanometer with Tangent Galvanometer - Electro magnetic induction - magnetic flux and induced emf. - Faraday and Lenz laws - Fleming's right hand rule - Self and Mutual inductances - Henry.

Unit 25.Atomic Physics

Discovery of electron - e/ m electron by Thomson's method - Charge of an electron by Millikan's oil drop method (Principle only) Photo electric effect - Laws of photoelectric emission - Einstein's photo electric equation and its experimental verification by Millikan's method - Photoelectric cells and their uses.

X-ray spectra - Mosley's law and its importance - Compton effect - Dual nature of matter - De Borglie's hypothesis (concepts only)

Unit 26. Nuclear Physics

Composition of nucleus - Nuclear forces - Mass defect and binding energy - Explanations with examples - Discovery of neutron - Nuclear fission - Chain reaction - Principle and working of a Nuclear reactor - Nuclear fusion - Energy of sun and stars (Carbon - Nitrogen cycle and Proton- Proton cycle) -Elementary particles.

Unit 27. Semi conductor Devices

Junction Diode - Depletion layer - Barrier potential- Forward bias and Reverse bias - Current - Voltage characteristics - Junction diode as half wave and full wave rectifiers - Zener diode as voltage regulator - Transistors - pnp and non transistors - Transistor characteristics - Transistor as common emitter amplifier (Block diagram and qualitative treatment only).

XXVIII Communication Systems:

Elements of communication systems (block diagram only), Bandalign of signals (Speech, TV and digital data), bandalign of Transmission medium. Propagation of electromagnetic waves in the atmosphere, sky and space wave propagation, Modulation, Need for modulation.

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