## WB JEEM 2015 Physics Syllabus:

**Physical World, Measurements, Units & Dimensions:**

Physical World, Measurements, Units & Dimensions Units & Dimensions of physical quantities; dimensional analysis & its applications; error in measurements; significant figures.

**Kinematics:** Scalars & vectors; representation of vectors in 3D, dot & cross product & their applications; elementary differential & integral calculus; time velocity & relevant graphs; equations of motions with uniform acceleration.

**Laws of motion:** Newton’s laws of motion; using algebra & calculus, inertial & non inertial frames; conservation of linear momentum with applications; elastic & inelastic collisions; impulse centripetal force; banking of roads; relative velocity; projectile motion & uniform circular motion

**Work, power, Energy:** Work, power, energy Work, work – energy theorem; power, energy, work done by constant & variable forces, PE & KE, conservation of mechanical energy, conservative and non conservative forces; PE of a spring.

**Gravitation:** Kepler’s laws (only statement) universal law of gravitation; acceleration due to gravity (g) variation of g; gravitational potential & PE; escape velocity; orbital velocity of satellites; geostationary orbits.

**Bulk Properties of Matter:** Elasticity; Hooke’s law; Young’s modulus; bulk modulus; shear; rigidity modulus; Poisson’s ratio elastic potential energy. Fluid pressure: Pressure due to fluid column; buoyancy; Pascal’s law; effect on gravity on fluid pressure. Surface tension: Surface energy; phenomena involving surface tension; angle of contact

**Viscosity:** Co – efficient of viscosity; streamline & turbulent motion; Reynold’s number; Stoke’s law; terminal velocity; Bernoulli’s theorem

**Heat & Thermal Physics:** Heat & Temperature; thermal expansion of solids; liquids & gases; ideal gas laws; isothermal & adiabatic processes; anomalous expansion of water & its effects. Sp heat capacity; Cp; Cv; calorimetry; change of state; specific latent heat capacity. Heat transfer; conduction & radiation; Newton’s law of cooling; Stefan’s law.

**Kinetic theory of gases:** Equation of state of a perfect gas; kinetic theory of gases; assumptions in kinetic theory of gases; concept of pressure & temperature; rms speed of gas molecules; degrees of freedom; law of equipartition of energy (introductory ideas) & application to specific heats of gases; mean free path; Avogadro number.

**Oscillations & Waves:** Periodic motion – time period; frequency; time – displacement equation; Simple harmonic motion (S.H.M) & its equation; phase; SHM in different systems; restoring force & force const; energy in S.H.M. KE & PE, free, forced & damped oscillations (introductory ideas); resonance wave motion; equation for progressive wave; longitudinal & transverse waves; sound waves; Newton’s formula & Laplace correction; factors affecting the velocity of sound in air; principles of superposition of waves; reflection of waves; standing waves in strings & organ pipes; fundamental mode; harmonics & overtones; beats; Doppler Effect.

**Electrostatics:** Conservation of electric charges; Coulomb’s law force between two point charges; forces between multiple charges; superposition principle & continous charge distribution. Electric field & potential due to a point charge & distribution of charges; electric field lines electric field due to a dipole in uniform electric field; electric flux; Gauss’s theorem & simple applications, conductors & insulators; free charges & bound charges inside a conductor; dielectrics & electric polarization, capacitors & capacitance; combination of capacitors in series & in parallel; capacitance of a parallel plate capacitor with & without dielectric medium between the plates, energy stored in a capacitor.

**Current Electricity:** Electric current & conductor; drift velocity; mobility & their relation with electric current; Ohm’s law; electric resistance; Ohmic and non Ohmic conductors; electric energy & power; carbon resistors; colour codes; combination of resistances; temperature dependence of resistances; electric cell; emf and internal resistance of an electric cell; pd; combination of cells; secondary cells (introductory); Kirchoff’s laws of electrical network; simple applications; principle of Wheatstone bridge; meter bridge and potientiometer and their uses; thermoelectricity; Seeback effect; Peltier effect; thermo emf.

**Magnetic effect of current: **Concept of magnetic field; Oersted’s experiment; Biot – Savart law & its applications to current carrying circular loop; Ampere’s law & its applications to infinitely long straight wire; straight and toroidal solenoids; force on a moving charge in uniform magnetic & electric fields; cyclotron frequency; force on a current carrying conductor in a uniform magnetic field; force between two parallel current carrying conductors – definition of ampere. Torque experienced by a current loop in a uniform magnetic field; moving coil galvanometer – its current sensitivity & conversion to ammeter & voltmeter; Inter conversion of voltmeter & ammeter & change of their ranges.

**Magnetics:** Current loop as a magnetic dipole & its magnetic dipole moment; magnetic dipole moment of a revolving electron; magnetic field intensity due to a magnetic dipole bar magnet along with its axis & perpendicular to its axis; torque on a magnetic dipole (bar magnet) in a uniform magnet field; magnet as an equivalent solenoid; magnetic field lines; Earth’s magnetic field & its magnetic elements. Para – dia & ferro – magnetic substances with examples. Electromagnets & the factors affecting their strengths permanent magnets

**Electromagnetic Induction & Alternating Current: **Electromagnetic induction; Faraday’s laws; induced emf & current; Lenz’s law; eddy current; self & mutual induction; alternating currents; peak rms value of alternating current and voltage; reactance and impedance; LR & CR circuits; phase lag & lead; LCR series circuit; resonance; power in AC circuits; wattless current

**Electromagnetic Waves:** Electromagnetic waves and their characteristics (qualitative ideas only); transverse nature of electromagnetic waves; electromagnetic spectrum; applications of the waves from the different parts of the spectrum

**Optics I (Ray Optics):** Reflection of light; spherical mirrors; mirror formula. Refraction of light; total internal reflection & its applications; optical fibres; refraction at spherical surfaces; lenses; thin lens formula; lensmaker’s formula. Newton’s relation: Displacement method to find position of images (conjugate points) Magnification; power of a lens; combination of thin lenses in contact; combination of a lens & mirror refraction and dispersion of light through a prism; optical instruments; human eye; image formulation & accommodation; correction of eye defects (myopia; hypermetropia) using lenses; microscopes & astronomical telescopes (reflecting & refracting) & their magnifying powers

**Optics II (Wave Optics):** Scattering of light – blue colour of the sky; elementary idea of Raman effect; wave optics: wave front & Huygen’s principle; reflection & refraction of plane wave at a plane surface using wave fronts. Proof of laws of reflection & refraction using Huygen’s principle Interference; Young’s double slit experiment & expression for fringe width; coherent sources; Fraunhoffer diffraction due to a single slit

**Particle nature of light & wave particle dualism:** Photoelectric effect; Hertz and Lenard’s observations; Einstein’s photoelectric equation – particle nature of light; matter waves; wave nature of particles; de Broglie relation.

**Atomic Physics:** Alpha – particle scattering expt Rutherford’s nuclear atom model of an atom; Bohr model of hydrogen atom; energy levels in hydrogen atom; hydrogen spectrum; continous & characteristic X – rays

**Nuclear Physics: **Composition & size of nucleus; atomic masses; isotopes; isobars; isotones; radioactivity – alpha, beta & gamma particles / rays & their properties; radioactive decay law; mass energy relation; mass defect; binding energy per nucleon & its variation with mass number; nuclear fission & fusion

**Solid State Electronics: **Energy bands in solids (qualitative ideas only); conductors; insulators & semi conductors; semi conductor diode – I – V characteristics in forward & reverse bias; diode as a rectifier; I – V characteristics of LED; photodiode; solar cell & Zener diode; Zener diode as a voltage regulator; junction transistor (BJT); transistor action; characteristics of BJT, BJT as an amplifier (CE configuration) & oscillator; logic gates (OR, AND, NOT, NAND & NOR)