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Kerala CEE Physics Exam Previous Years Question Papers Kerala CEE Physics Question Paper have questions from following topics: Unit 1 : Introduction and Measurement Physics – Scope and excitement; Physics in relation to science, society and technology – inventions, names of scientists and their fields, nobel prize winners and topics, current developments in physical sciences and related technology. Units for measurement – systems of units, S .I units, conversion from other systems to S.I units. Fundamental and derived units. Measurement of length, mass and time, least count in measuring instruments ( eg. vernier calipers, screw gauge etc ), Dimensional analysis and applications, order of magnitude, accuracy and errors in measurement, random and instrumental errors, significant figures and rounding off principles. Unit 2 : Description of Motion in One Dimension Objects in motion in one dimension – Motion in a straight line, uniform motion – its graphical representation and formulae; speed and velocity – instantaneous velocity; ideas of relative velocity with expressions and graphical representations; Uniformly accelerated motion, position – time graph, velocity – time graph and formulae. Elementary ideas of calculus – differentiation and integration – applications to motion. Unit 3 : Description of Motion in Two and Three Dimensions Vectors and scalars, vectors in two and three dimensions, unit vector, addition and multiplication, resolution of vector in a plane, rectangular components, scalar and vector products. Motion in two dimensions – projectile motion, ideas of uniform circular motion, linear and angular velocity, relation between centripetal acceleration and angular speed. Unit 4 : Laws of Motion Force and inertia, first law of motion, momentum, second law of motion, forces in nature, impulse, third law of motion, conservation of linear momentum, examples of variable mass situation, rocket propulsion, equilibrium of concurrent forces. Static and kinetic friction, laws of friction, rolling friction, lubrication. Inertial and non – inertial frames ( elementary ideas ); Dynamics of uniform circular motion – centripetal and centrifugal forces, examples : banking of curves and centrifuge. Unit 5 : Work, Energy and Power Work done by a constant force and by a variable force, units of work – Energy – kinetic and potential forms, power, work – energy theorem. Elastic and inelastic collisions in one and two dimensions. Gravitational potential energy and its conversion to kinetic energy, spring constant, potential energy of a spring, Different forms of energy, mass – energy equivalence ( elementary ideas ), conservation of energy, conservative and non-conservative forces. Unit 6 : Motion of System of Particles and Rigid Body Rotation Centre of mass of a two particle system, generalisation to N particles, momentum conservation and center of mass motion, applications to some familiar systems, center of mass of rigid body. Moment of a force, torque, angular momentum, physical meaning of angular momentum, conservation of angular momentum with some examples, eg. planetary motion. Equilibrium of rigid bodies, rigid body rotation and equation of rotational motion, comparison of linear and rotational motions, moment of inertia and its physical significance, radius of gyration, parallel and perpendicular axes theorems ( statements only ), moment of inertia of circular ring and disc, cylinder rolling without slipping. Unit 7 : Gravitation Universal law of gravitation, gravitational constant ( G ) and acceleration due to gravity ( g ), weight and gravitation, variation of g with altitude, latitude, depth and rotation of earth. Mass of earth, gravitational potential energy near the surface of the earth, gravitational potential, escape velocity, orbital velocity of satellite, weightlessness, motion of geostationary and polar satellites, statement of Kepler’s laws of planetary motion, proof of second and third laws, relation between inertial and gravitational masses. Unit 8 : Mechanics of Solids and Fluids Solids : Hooke’s law, stress – strain relationships, Youngs modulus, bulk modulus, shear modulus of rigidity, some practical examples. Fluids : Pressure due to fluid column, Pascal’s law and its applications ( hydraulic lift and hydraulic brakes ), effect of gravity on fluid pressure, Buoyancy, laws of floatation and Archimedes principles, atmospheric pressure. Surface energy and surface tension, angle of contact, examples of drops and babbles, capillary rise, detergents and surface tension, viscosity, sphere falling through a liquid column, Stokes law, streamline flow, Reynold’s number, equation of continuity, Bernoulli’s theorum and applications. Unit 9 : Heat and Thermodynamics Kinetic theory of gases, assumptions, concept of pressure, kinetic energy and temperature, mean – rms and most probable speed, degrees of freedom, statement of law of equipartition of energy, concept of mean free path and Avogadros’ number Thermal equilibrium and temperatures, zeroth law of thermodynamics, Heat – work and internal energy, Thermal expansion – thermometry. First law of thermodynamics and examples, specific heat, specific heat of gases at constant volume and constant pressure, specific heat of solids, Dulong and Petit’s law. Thermodynamical variables and equation of state, phase diagrams, ideal gas equation, isothermal and adiabatic processes, reversible and irreversible processes, Carnot engines, refrigerators and heat pumps, efficiency and coefficient performance of heat engines , ideas of second law of thermodynamics with practical applications. Thermal radiation – Stefan – Boltzmann law, Newton’s law of cooling. Unit 10 : Oscillations Periodic motion – period, frequency, displacement as a function of time and periodic functions; Simple harmonic motion ( S.H.M ) and its equation, uniform circular motion and simple harmonic motion, oscillations of a spring, restoring force and force constant, energy in simple harmonic motion, kinetic and potential energies, simple pendulum – derivation of expression for the period; forced and damped oscillations and resonance ( qualitative ideas only ), coupled oscillations. Unit 11 : Waves Longitudinal and transverse waves, wave motion, displacement relation for a progressive wave, speed of a traveling wave, principle of superposition of waves, reflection of waves, standing waves in strings and pipes, fundamental mode and harmonics, beats, Doppler effect of sound with applications. Unit 12 : Electrostatics Frictional electricity; Properties of electric charges – conservation, additivity and quantisation. Coulomb’s law – Forces between two point electric charges, Forces between multiple electric charges; Superposition principle and continuous charge distribution. Electric field and its physical significance, electric field due to a point charge, electric field lines; Electric dipole, electric field due to a dipole and behavior and dipole in a uniform electric field. Electric potential – physical meaning, potential difference, electric potential due to a point charge, a dipole and system of charges; Equipotential surfaces, Electrical potential energy of a system of point charges, electric dipoles in an electrostatic field. Electric flux, statement of Gauss’ theorem – its application to find field due to an infinitely long straight wire, uniformly charged infinite plane sheet and uniformly charged thin spherical shell. Conductors and insulators presence of free charges and bound charges; Dielectrics and electric polarization, general concept of a capacitor and capacitance, combination of capacitors in series and in parallel, energy stored in a capacitor, capacitance of a parallel plate capacitor with and without dielectric medium between the plates, Van de Graff generator. Unit 13 : Current Electricity Electric current, flow of electric charges in a metallic conductor, drift velocity and mobility, their relation with electric current; Ohm’s law, electrical resistance, V – I characteristics, limitations of Ohm’s law, electrical resistivity and conductivity, classification of materials in terms of conductivity; Superconductivity ( elementary idea ); Carbon resistors, colour code for carbon resistors; combination of resistances – series and parallel. Temperature dependence of resistance. Internal resistance of a cell, Potential difference and emf of a cell, combination of cells in series and in parallel. Kirchoff’s laws illustration by simple applications, Wheatstone bridge and its applications, Meter bridge. Potentiometer – principle and applications to measure potential difference, comparison of emf of two cells and determination of internal resistance of a cell. Electric power, thermal effects of current and Joule’s law; Chemical effects of current, Faraday’s laws of electrolysis, Electro – chemical cells. Unit 14 : Magnetic Effect of Current and Magnetism Concept of a magnetic field, Oersted’s experiment, Biot – Savart’s law, magnetic field due to an infinitely long current carrying straight wire and a circular loop, Ampere’s circuital law and its applications to straight and toroidal solenoids. Force on a moving charge in a uniform magnetic field, cyclotron. Force on current carrying conductor and torque on current loop in magnetic fields, force between two parallel current carrying conductors, definition of the ampere. Moving coil galvanometer and its conversion into ammeter and voltmeter. Current loop as a magnetic dipole, magnetic moment, torque on a magnetic dipole in a uniform magnetic field, Lines of force in magnetic field. Comparison of a bar magnet and solenoid. Earth’s magnetic field and magnetic elements, vibration magnetometer. Para, dia and ferromagnetic substances with examples. Electromagnets and permanent magnets. Unit 15 : Electromagnetic Induction and Alternating Current Electromagnetic induction, Faraday’s laws, Induced e.m.f. and current, Lenz’s law, Eddy currents, self and mutual inductance. Alternating current, peak and rms value of alternating current / voltage, reactance and impedance, L.C. oscillations, LCR series circuit. ( Phasor diagram ), Resonant circuits and Q – factor; power in A.C. circuits, wattless current. AC generator and Transformer. Unit 16 : Electromagnetic Waves Properties of electromagnetic waves and Maxwell’s contributions ( qualitative ideas ), Hertz’s experiments, Electromagnetic spectrum ( different regions and applications ), propagation of electromagnetic waves in earth’s atmosphere. Unit 17 : Optics Reflection in mirrors, refraction of light, total internal reflection and its applications, spherical lenses, thin lens formula, lens maker’s formula; Magnification, Power of a lens, combination of thin lenses in contact; Refraction and dispersion of light due to a prism, Scattering of light, Blue colour of the sky and appearance of the sun at sunrise and sunset. Optical instruments, Compound microscope, astronomical telescope ( refraction and reflection type ) and their magnifying powers. Wave front and Huygen’s principle. Reflection and refraction of plane wave at a plane surface using wave fronts ( qualitative idea ); Interference – Young’s double slit experiment and expression for fringe width, coherent sources and sustained interference of light; Diffraction due to a single slit, width of central maximum, difference between interference and diffraction, resolving power of microscope and telescope; Polarisation, plane polarised light, Brewster’s law, Use of polarised light and polaroids. Unit 18 : Dual Nature of Matter and Radiations Photoelectric effect, Einstein photoelectric equation – particle nature light, photo – cell, Matter waves – wave nature of particles. De Broglie relation, Davisson and Germer experiment. Unit 19 : Atomic Nucleus Alpha particle scattering experiment, size of the nucleus – composition of the nucleus – protons and neutrons. Nuclear instability – Radioactivity – Alpha, Beta and Gamma particle / rays and their properties, radio – active decay laws, Simple explanation of ¬¬-decay, ¬-decay and ¬¬decay; mass – energy relation, mass defect, Binding energy per nucleon and its variation with mass number. Nature of nuclear forces, nuclear reactions, nuclear fission, nuclear reactors and their uses; nuclear fusion, elementary ideas of energy production in stars. Unit 20 : Solids and Semiconductor Devices Energy bands in solids ( qualitative ideas only ), difference between metals, insulators and semi-conductors using band theory; Intrinsic and extrinsic semi – conductors, p – n junction, Semi – conductor diode characteristics forward and reverse bias, diode as a rectifier, solar cell, photo – diode, zener diode as a voltage regulator; Junction transistor, characteristics of a transistor; Transistor as an amplifier ( common emitter configuration ) and oscillator; Logic gates ( OR, AND, NOT, NAND, NOR ); Elementary ideas about integrated circuits. Unit 21 : Principles of Communications Elementary idea of analog and digital communication; Need for modulation, amplitude, frequency and pulse modulation; Elementary ideas about demodulation, Data transmission and retrieval, Fax and Modem. ( basic principles ) Space communications – Ground wave, space wave and sky wave propagation, satellite communications. Question paper: Here is the attachment for question paper: Last edited by Aakashd; February 2nd, 2020 at 11:21 AM. |
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Re: Kerala CEE Physics Exam Previous Years Question Papers
As per your request here I am sharing the Question paper of Kerala CEE Physics Exam Physics 1.Which of the following is not an electro magnetic wave a) x-rays b) alpha-rays c) gamma-rays d) light rays 2.Electro magnetic waves of wave length ranging from 100Åto 4000Å come under a) x-rays b) UV region c) visible region d) infra-red region 3.Electro magnetic theory suggests that the light consists of a) magnetic vector alone b) electric vector alone c) electric and magnetic vectors perpendicular to each other. d) parallel electric and magnetic vector 4.The frequency of radio waves corresponding to a wave length of 10 m is a) 3×107Hz b) 3.3×108Hz c) 3×109Hz d) 3×10−7Hz 5.The electromagnetic waves travel with velocity of a) sound b) light c) greater than that of light d) greater than that of sound 6.The existence of EM waves were experimentally confirmed by a) Maxwell b) Faraday c) Hertz d) Tesla 7.The back emf in a DC motor is maximum when a) the motor has picked up maximum speed b) the motor has just started moving c) the speed of motor is still on increase d) the motor has just been switched off 8.AC measuring instrument measures a) peak value b) rms value c) any value d) average value 9.The Q-factor of a resonant circuit is equal to a) 1CWR b) 1WL c) CWR d) fCW 10.In a step-down transformer, the number of turns in a) Primary are less b) Primary are more c) Primary and secondary equal d) secondary are infinite 11.In AC circuits choke is preferred to resistors because a) choke coil is cheap b) voltage increases c) energy is not wasted d) current increases 12.A choke is used as resistance in a) AC circuits b) DC circuits c) half-wave rectifier circuits d) both AC and DC circuits 13.The frequency of AC mains in India is a) 110 C/S b) 50 C/S c) 60 C/S d) 120 C/S 14.A transformer works on a) DC only b) AC only c) both AC and DC d) high voltage only 15.Alternating voltage a) is independent of time b) varies directly with time c) varies inversely with time d) varies sinusoidaly with time 16.The law of electromagnetic induction have been used in the construction of a) electric operator b) electric motor c) galvanomet d) none of the above 17.Power consumed in an AC circuit become zero if a) inductance and resistance are both high b) inductance and resistance are both low c) inductance very high and resistance negligible d) inductance low and resistance high 18.The rms value of current (Irms) is a) b/2 b) 2Io c) ω d) 2I0 19.In a purely inductive circuit the current a) is in phase with the voltage b) is out of phase with the voltage c) eads the voltage by 900 d) lags behind the voltage by 900 20.A lamp is connected in a series with a capacitor and an ac source, what happens if the capacity of the capacitor is reduced? a) the lamp shines more brightly b) the lamp shines less brightly c) there is no change in the brightness of the lamp d) brightness may increase or decrease depending on the frequency of ac 21.A transformer is a device which converts a) low voltage low current into high voltage high current b) high voltage low current into low voltage high current c) high voltage high current into low voltage low current d) electric power into mechanical power 22.The resonant frequency of an LC circuit is a) 1/2πLC b) 12πLC c) 12πL/C d) 12πC/L 23.If the conductance and capacitance are both doubled in LCR circuit, the resonant frequency of the circuit will a) decrease to one half the original value b) decrease to one-forth the original value c) increase to twice the original value d) decrease to twice the original value 24.The power factor in an LCR circuit at resonance is a) zero b) 1 c) 0.8 d) 1/2 25.The power factor in a circuit is unity. Then the impedance of the circuit is a) inductive b) capertive c) partially inductive and partially conductive d) resistive 26.One complete set of negative and positive values of alternating quantities is called a) time period b) amplitude c) frequency d) cycle 27.The instantaneous value of an ac is given by 1=5sin(wt+φ). The rms value of current is a) SA b) 2×SA c) S/2A d) 2.5A 28.Inductive reactance of a coil expressed as a) Ampere b) ohm c) volt d) weber 29.The average value of alternating current over a complete cycle is a) zero b) 1 rms c) i/2 d) i/2 30.A induction may store energy in a) Its electric field b) Its coils c) Its magnetic field d) Both electric and magnetic fields 31.Two different coils have self inductance 8mH and 2mH. The current in both coils are increased at same constant rate. The ratio of the induced emfs in the coil is a) 4:1 b) 1:4 c) 1:2 d) 2:1 32.A coil of resistance 5Ω and inductance 4H is connected to a 10V battery. The energy stored in the coil a) 0.8J b) 8J c) 16J d) 4J 33.Two coils of self inductance L1and L2are placed close together so that effective flux in one coil is completely linked with the other. If m is the mutual inductance between them, then a) M=L1L2 b) L1L22 c) M=(L1+L2)2 d) M=L1L2 34.The instrument which works on the principle of mutual induction is a) galvanometer b) ammeter c) potentiometer d) transformer 35.What is the self inductance of a coil in which an induced emf of 2V is set up when the current is charged at the rate of 4AS−1 a) 0.5mH b) 0.05H c) 2H d) 0.5H 36.Lenz's Law is a consequence of law of conservation of a) energy only b) charge only c) momentum only d) energy and momentum 37.Two blocks A (20kg) lying on a frictionless table are connected by a light string. The system is pulled horizontally with an acceleration of 2m/s2by a force F on B. The tension in the string is a) 10N b) 40N c) 100N d) 120N 38.A body of mass 2kg collides with a wall with a speed of 100 m/s and rebounds with the same speed. If the time of contact is 150s, the force exerted on the wall is a) 8N b) 2×104N c) 4N d) 104N 39.The mechanical advantage of a system of pulley s is four. The force needed to lift a mass of 100 kg will be a) 20kg. Wt b) 25kg. Wt c) 5kg. Wt d) 15kg. Wt 40.The distance x covered in time t by a body having initial velocity u and having constant acceleration a is given by x=ut+12at2. This result follows from a) Newton's First Law b) Newton's Second Law c) Newton's Third Law d) None of the above 41.A plumb bob is hanging from the ceiling of a car. If the car moves with the acceleration 'a' the angle made by the string with the vertical is a) sin−1(ag) b) sin−1(ga) c) tan−1(ag) d) tan−1(ga) 42.A weight W can be just supported on a rough inclined plane by a force F either acting along the plane or horizontally. If θ is the angle of friction, then F/W is a) tan θ b) sec θ c) sin θ d) cos θ 43.A 1000 kg lift is supported by a cable that can support 2000kg. The shortest distance in which the lift can be supported when it is descending with a speed of 2.5 m/s is (g=10m/s2) a) 5/16m b) 5/32 m c) 1m d) 2m 44.A body is projected up a 450rough incline. The coefficient of friction is 0.5. Then the retardation of the block is a) g/22 b) g/2 c) 3g/22 d) g/2 45.A body takes n times as much time to slide down as 450rough incline as it takes to slide down a smooth 450incline. The coefficient of friction is a) 1−1/n2 b) 1/1−n2 c) 1−1/n2 d) 1/1−n2 46.A ball of mass m is thrown upward with a velocity v. If air exerts an average resisting force F, the velocity with which the ball returns back to the thrower is a) vmgmg+F b) vFmg+F c) vmg−Fmg+F d) vmg+Fmg−F 47.A ball of mass 0.1kg strikes a wall normally with a speed of 30 m/s and rebounds with a speed of 20m/s. The impulse of the force exerted by the wall on the ball is a) 1N-S b) 5N-S c) 2N-S d) 3N-S 48.A body kept on a smooth inclined plane having inclination 1 in x will remain stationary relative to the inclined plane if the plane is given a horizontal acceleration equal to a) g/x2−1 b) gxx2−1 c) x2−1/gx d) x3−1/gx 49.The minimum acceleration with which a fireman can slide down a rope of breaking strength two-third of his weight is a) zero b) g/3 c) 3g d) g 50.An elevator is moving vertically up with an acceleration 'a'. The force exerted on the floor by a passenger of mass m is a) mg b) ma c) mg-ma d) mg+ma
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