## VSAT 2015 Physics Syllabus

**VSAT 2015 Entrance Test Physics Syllabus – Vignan University Scholarship Aptitude Test Physics Syllabus 2015**

**VSAT 2015 Admission Test Physics Syllabus** has been Published. All Students who are aspiring for Admission to B.Tech Engineering Programs in Vignan University and Searching for **VSAT 2015 Physics Entrance Test Syllabus** are hereby informed that the Vignan University Admission Department has Published** VSAT 2015 Physics Syllabus**. Students who are searching for **VSAT 2015 Test Physics Syllabus** and interested to check **VSAT 2015 Entrance Test Syllabus** can check **Vignan University Scholarship Aptitude Test Physics Syllabus 2015**.

**VSAT 2015 Entrance Test Physics Syllabus** includes Various Units, Topics and Sub Topics. Students who aspires to Crack **VSAT 2015 Physics Entrance Test** has to Cover all Units, Topics and Sub Topics **. **

**Vignan University VSAT 2015 Syllabus :**

**Vignan University Scholarship Aptitude Test Syllabus**** **

**Vignan University VSAT 2015 Physics Syllabus :**

**Unit 1: Physical world**

What is Physics? , Scope and excitement of physics, physics technology and society, fundamental forces in nature, Nature of physical laws

**Units and Dimensions and Measurement**

Units for fundamental and derived quantities, system of units, rules for writing units, multiple and submultiples units in S.I system, Accuracy and precision, errors, types of errors – random errors, gross errors, systematic errors, absolute errors, mean absolute error, relative error, percentage error, errors due to addition, subtraction, multiplication, division and powers of observed quantities, dimensions of physical quantities, dimensional formulae, applications and limitations of dimensional analysis, significant figures

**V****ectors**

Scalars and vectors, types of vectors – equal, null and unit vectors, position vector, parallelogram law of vectors – applications, Triangle of law of vectors – applications, expression for resultant vector, polygon law of vectors, concept of relative velocity – application to relative motion of a boat in a river, multiplication of vector with scalar product with examples, vector product with examples

**Rotatory Motion**

Basic concepts – angular displacement, angular velocity, angular acceleration, centripetal and centrifugal force applications, motion of a body in a vertical circle, concept of Torque and couple, Angular momentum, moment of Inertia – parallel and perpendicular axes theorems, M. I. of a thin rod, uniform disc, rectangular lamina, solid sphere, hollow sphere, circular ring, solid cylinder, hollow cylinder, law of conservation of angular momentum with examples, rolling motion

**Gravitation**

Universal law of gravitation, nature of gravity, relation between g and G, Keplers laws,variation of acceleration due to gravity with altitude, depth, latitude and shape of the earth – inertial and non – inertial frames inertial and gravitational masses – escape velocity – orbital velocity – geostationary satellites and their uses

**Unit 2: Kinematics**

Motion in a straight line, uniform motion, uniformly accelerated motion using position – time, velocity – time graphs, and relations for uniformly accelerated motion – concept of acceleration due to gravity equations of motion of freely falling body – vertically projected bodies from ground and tower. Motion in a plane with constant acceleration, projectiles oblique projection, horizontal projection from top of a tower – applications

**Laws of motion (Dynamics)**

Force and Inertia, Newtons first law of motion; momentum, Newtons second law of motion; Impulse, apparent weight, Newtons third law of motion; law of conservation of linear momentum and its applications, equilibrium of a particle, At woods machine, objects suspended by strings, blocks placed in contact with each other on frictionless horizontal surface

**W****ork, Power and Energy**

Definitions and units of work – power – energy, work done by variable force, expressions for P.E. & K.E., work – energy theorem, law of conservation of energy examples

**Collisions**

Collisions in one dimension – elastic and inelastic collision, coefficient of restitution, equation for height attained by freely falling body after a number of rebounds on the floor, collisions in two Dimensions.

**Centre of mass**

Definition of centre of mass – examples – centre of gravity – co-ordinates of centre of mass, characteristics, centre of mass of rigid body with homogeneous distributions of mass – thin rod, circular ring, disc, sphere.

**Friction**

Types of friction – static, kinetic and rolling – causes of friction – methods to reduce friction – motion of a body on the rough horizontal surface – pushing and pulling of lawn roller – acceleration, velocity of a body sliding on smooth and rough inclined planes

**Unit 3: Mechanical properties of solids**

Stress – strain Hooks law – modulii of elasticity (Y, n, K) poissons ratio – behaviour of a wire under increasing load, elastic fatigue, strain energy, Searls experiment, Determination of Youngs modulus of material of a wire, Applications of elastic behavior of materials.

**Mechanical properties of fluids**

**Surface Tension**

Surface tension – definition – examples, molecular theory – force due to surface tension – applications, surface energy, work done in splitting the liquid drop – applications, angle of contact, capillarity – example, experimental determination of surface tension by capillary rise method, excess pressure inside a liquid drop and soap bubble applications

**Fluid mechanics and viscosity**

Principle of buoyancy – pressure energy in a fluid, Pascals law, variation of pressure with depth, atmospheric pressure and guage pressure, hydraulic machines , equation of continuity and Bernoullis theorem -applicationto aerodynamic lift and motion of spinning ball, Torricellis law, venture meter, Blood flow and heart attack, steam line flow – turbulent flows – characteristics of stream line flow – turbulent flow – Poisuilles equation – Stokes formula Terminal velocity-Reynolds number.

**Unit 4: Oscillations**

Definitions and examples – displacement, velocity, acceleration, time period, frequency – time period of simple pendulum, spring pendulum, force constant, K.E. and P.E. of a body in SHM, systems executing S.H.M., DampedS.H.M

**W****ave motion and Sound waves**

Types of waves; longitudinal and transverse, progressive wave and its equation, stationary wave and its equation, principle of superposition of waves, reflection of waves, formation of stationary waves in stretched strings, laws of vibrating strings, sonometer, characteristics of sound, speed of sound in solids, liquids and gases, free and forced vibrations, resonance, standing waves in organ pipes – closed and open pipes (harmonics and overtones), Beats – definition and applications – Doppler effect – expressions for apparent frequency of sound in different cases – applications and limitation of Doppler effect – Echoes – absorption of sound waves – reverberation time.

**Unit 5: Ray Optics**

Reflection of light by spherical mirrors, Theories of light – Refraction of light at plane surface – prism – R.I. of – prism -critical angle – total internal reflection – application optical fibre – Lens makers formula – applications, lens theory, defects in images-spherical and chromatic aberrations and methods of their reduction – optical instruments simple and compound microscopes – astronomical and terrestrial telescopes – Ramsdens eyepiece- Huygens eye piece, kinds of spectra – emission, line, band and continuous spectra – absorption spectra – applications, fraunhoffer lines and their significance. Some natural phenomenon of sunlight

**Physical Optics**

Huygens principle Interference of light – coherent sources – conditions for interference, Youngs double slit experiment – fringe width – diffraction different classes of diffraction – Fresnels and Fraunhofers diffraction application – polarization – production of plane polarized light by reflection and refraction – double refraction Polaroids

**Unit 6: Magnetism & Matter**

Coulombs inverse square law, magnetic field, magnetic lines of force, uniform and non – uniform magnetic fields couple acting on a bar magnet, magnetic moment – Bon axial and equatorial lines – Tangent law – deflection.

magnetometer – comparison of magnetic moments in Tan A and Tan B, position in equal distance and null methods- verification of inverse square law vibration magnetometer – experimental determination of M and BH – dia, para and ferromagnetic materials, properties and uses, Magnetism and Gausss law, Earths magnetism,Magnetisation and magnetic intensity, Hysteresisgraph.

**Electrostatics**

Electric charge – properties, coulombs inverse square law – principle of superposition with examples – concept of electric – field electric lines of force and their properties – electric intensity – Intensity due to isolated charge and due to multiple charges, Electric dipole, Dipole in uniform external field – electrostatic potential, definition- potential due to point charge and group of charges – relation between V and E, electrostatic potential energy, electric flux, Gauss law-Applications of Gauss law to find electric intensity and potential due to continuous charge distribution of infinite wire and infinite plane sheet and spherical shell, potential due to electric dipole, Electrostatics of conductors, dielectrics and polarization, capacitance – dielectric constant – condenser-definition and its uses – parallel plate condenser – effect of dielectric on capacitance of capacitors, capacitors in series and parallel, energy stored in a capacitor – types of capacitors – their uses, Vande- Graff generator

**Current Electricity**

Electriccurrent, driftvelocity, mobility, Ohms law and applications, resistance, conductance, specific resistance, specific conductance, variation of resistance and resistivity with temperature – thermostat – effective resistance in different cases, EMF of a cell electrical energy – electrical power and their units – Kirchoffs laws application to Wheatstone bridge – condition for balancing – metre bride – potentiometer applications.

**Unit 7: Moving charges and magnetism**

Oersteds experiment, different laws to determine the direction of magnetic field – Biot-Savarts law – Amperes law, solenoid and Toroid, magnetic field near a long straight conductor, circular coil – tangent galvanometer, force ona moving charge and current carrying conductor in a magnetic field – force between two straight and parallel conductors, Torque on current loop, magnetic dipole, Flemings left hand rule – working of moving coil galvanometer – conversion of MCG into ammeter and voltmeter

**Electro magnetic induction**

Electro magnetic induction, Experiments of Faraday & Henry, Faradays law, – Flemings right hand rule, Lenzs law, eddy currents, self inductance – mutual inductance – transformer – growth and decay of charge in C – R circuit connected to dc source – growth and decay of current in L – R circuit connected to dc source – time constant in C – R , L – R circuits significance, A.C generator.

**Alternating currents**

Instantaneous, peak mean and rms values of alternating current and alternating voltage applied to pure resistor, pure inductor, L – R, C – R and LCR circuits, power factor, LC oscillations.

**Electro magnetic waves:-**

Displacement current, Electro magnetic waves , Wlectro magnetic spectrum.

**Unit 8: Dual nature of matter and radiation**

Discovery of electron – specific charge of the electron by J.J. Thomsons method – Millikans oil drop experiment, photoelectric effect -laws of photoelectric effect – Einsteins photo electric equation – Millikans experimental verification of PEE, photo electric cells, de Broglies hypothesis – matter waves, wave nature of matter, Davisson and Germer experiment

**Atoms**

Alpha particals scattering and Rutherfords nuclear model of Atom, Atomic spectra, Bhors model of hydrogenatom, lines spectra of hydrogen atom, De Brogles explanation of Bhors second postulate of Quantization

**Nucle****i **Nucleus and its composition, mass defect, binding energy, binding energy curve, natural radio activity α, β,γ rays-properties, radioactive decay law, half life and average life, nuclear forces and their properties discovery of Neutron, radio isotopes and uses, artificial transmutation, nuclear fission, chain reaction, nuclear reactor, Nuclear fusion – energy of sun and stars (carbon – nitrogen cycle, proton – proton cycle).

**Semiconductor Devices**

Intrinsic & extrinsic semi conductors, p – type, n – type, P – N junction, junction diode, forward bias, reverse bias, current – voltage characteristics – rectifiers – Half wave and full wave rectifiers – zener diode as voltage regulator, transistor – PNP, NPN transistors and their working, V – I characteristics of transistor in CE configuration, Transistor as amplifier, digital electronics, logic (OR, AND, NOT, NAND, NOR) integrated circuits, special purpose PN junction diode.

**Communication Systems**

Elements of communication system (block diagrams), band width of signals (speech, TV and digital data) Band with of transmission medium, propagation of electromagnetic waves in the atmosphere, sky and space wave propagation modulation, Amplitude modulation, production of amplitude modulated wave detection of amplitude modulated wave.

**Unit 9: Temperature and thermal expansion of Solids, Liquids and Gases**

Thermal expansion of materials using potential energy curve (only qualitative treatment), coefficient of linear (a), area (b) and volume (r) expansions, the coefficients of real (rr) and apparent (ra) expansion of liquid, variation of density of solids and liquids with temperature, specific gravity bottle method for the determination of , anamalous expansion of water and its significance in nature, volume and pressure coefficients of gases-their relationship – Regnaults apparatus – Boyels law, Charles law – ideal gas equation – universal gas constant significance.

**Thermodynamics**

Heat – definition – calorie, thermal capacity, specific heat, latent heat – calorimetry – determination of specific heat and latent heat by method of mixtures – Joules law – first law and second law of thermodynamics, heat engine – refrigerator, phases of matter – triple point of water – specific heats of gases Cp, Cv and their relationship – Isothermal and adiabatic processes – relationships between P, V and T in adiabatic process – external work done by ideal gas in adiabatic, isothermal processes.

**T****ransmission of heat**

Conduction – coefficient of thermal conductivity – convection – free and forced convection – thermal radiation properties, provosts theory of heat exchange – emissive and absorptive power of bodies – black body radiation – kirchoffs law and its applications – Stefans law – Newtons law of cooling.

**Kinetic Theory**

Molecular nature of matter, Behaviour of gases, kinetic theory of an ideal gas, Law of equipartition of energy, specific heat capacity, Mean free path.

**Source : VSAT 2015 Physics Syllabus **

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