AHSEC 1st Year Syllabus 2024-25 Physics

REVISED SYLLABUS OF PHYSICS
H.S. First Year
PHYSICS
SYLLABUS FOR HIGHER SECONDARY FIRST YEAR COURSE

Higher Secondary stage of school education is a stage of transition from general education
to discipline - based focus on curriculum. The present updated syllabus keeps in view the
rigour and depth of disciplinary approach as well as the comprehension level oflearners. Due
care has also been taken that the syllabus is comparable to the international standards.
Salient features ofthe syllabus include:
• Emphasis on basic conceptual understanding ofthe content.
• Emphasis on use of'Sl units, symbols, nomenclature of physical quantities and formulations as
per international standards.
• Providing logical sequencing of units of the subject matter and proper placement of concepts
with their linkage for better learning.
• Reducing the curriculum load by eliminating overlapping of concepts/content within the
discipline and other disciplines.
• Promotion of process-skills, problem-solving abilities and applications of physics concept.

Besides, the syllabus also attempts to
• strengthen the concepts developed at the secondary stage to provide firm foundation for
further learning in the subject.
• expose the learners to different processes used in Physics-related industrial and technological
applications.
• develop process-skills and experimental, observational, manipulative, decision making and
investigatory skills in the learners.
• promote problem solving abilities and creative thinking in learners.
• develop conceptual competence in the learners and make them realize appreciate the
interface of physics with other disciplines.
One Paper (Theory) Time: 3 hours Total Marks: 70

Unit No. of Periods Marks.
Unit–I Physical World and Measurement 10
Chapter-1: Physical World
Chapter–2: Units and Measurements
Unit-II Kinematics 24 20
Chapter–3: Motion in a Straight Line
Chapter–4: Motion in a Plane
Unit–III Laws of Motion 16
Chapter–5: Laws of Motion
Unit–IV Work, Energy and Power 16
Chapter–6: Work, Energy and Power

Unit–V Motion of System of Particles and Rigid 18
Body
Chapter–7: System of Particles and Rotational 15
Motion
Unit-VI Gravitation 12
Chapter–8: Gravitation
Unit–VII Properties of Bulk Matter 24
Chapter–9: Mechanical Properties of Solids
Chapter–10: Mechanical Properties of Fluids
Chapter–11: Thermal Properties of Matter
23
Unit–VIII Thermodynamics 12
Chapter–12: Thermodynamics
Behaviour of Perfect Gases and KineticTheory 10
Unit–IX
of Gases
Chapter–13: Kinetic Theory
Unit–X Oscillations and Waves 28
12
Chapter–14: Oscillations
Chapter–15: Waves
68

Total 170 70

Unit I: Physical World and Measurement. 10 Periods
Chapter–1: Physical World
Chapter–2: Units and Measurements
Need for measurement: Units of measurement; systems of units; SI units, fundamental and
derived units. significant figures. Dimensions of physical quantities, dimensional analysis
and its applications.
Unit II: Kinematics 24 Periods
Chapter–3: Motion in a Straight Line
Elementary concepts of differentiation and integration for describing motion, uniform and
non- uniform motion, Frame of reference and instantaneous velocity, uniformly
accelerated motion, velocity - time and position-time graphs.

Relations for uniformly accelerated motion (graphical treatment).
Chapter–4: Motion in a Plane
Scalar and vector quantities; position and displacement vectors, general vectors and their
notations; equality of vectors, multiplication of vectors by a real number, addition and

subtraction of vectors, Unit vector; resolution of a vector in a plane,rectangular
components, Scalar and Vector product of vectors.

Motion in a plane, cases of uniform velocity and uniform acceleration- projectile motion,
uniform circular motion.

Unit III: Laws of Motion 16 Periods
Chapter–5: Laws of Motion
Intuitive concept of force, Inertia, Newton's first law of motion; momentum and
Newton's second law of motion; impulse; Newton's third law of motion.
Law of conservation of linear momentum and its applications.
Equilibrium of concurrent forces, Static and kinetic friction, laws of friction, rolling friction,
lubrication.
Dynamics of uniform circular motion: Centripetal force, examples of circular motion (vehicle on a
level circular road, vehicle on a banked road). Solving problem in mechanics.
Unit IV: Work, Energy and Power 16 Periods
Chapter–6: Work, Energy and Power
Work done by a constant force and a variable force; kinetic energy, work- energy
theorem, power. Notion of potential energy, potential energy of a spring, conservative
forces: conservation of mechanical energy (kinetic and potential energies); non-
conservative forces: motion in a vertical circle; elastic and inelastic collisions in one
and two dimensions.
Unit V: Motion of System of Particles and Rigid Body. 18 Periods
Chapter–7: System of Particles and Rotational Motion
Centre of mass of a two-particle system, momentum conservation and motion of centre of
Mass, Centre of mass of a rigid body; centre of mass of a uniform rod.
Moment of a force, torque, angular momentum, law of conservation of angular
momentum and its applications.

Equilibrium of rigid bodies, rigid body rotation and equations of rotational motion,
comparison of linear and rotational motions.

Moment of inertia, radius of gyration, values of moments of inertia for simple geometrical
objects (no derivation).

Unit VI: Gravitation 12 Periods
Chapter–8: Gravitation

Kepler’s Laws of Planetary motion, Universal law of gravitation. Acceleration due to gravity
and its variation with altitude and depth. Gravitational potential energy and gravitational
potential,escape velocity, orbital velocity of a satellite,.

Unit VII: Properties of Bulk Matter. 24 Periods
Chapter–9: Mechanical Properties of Solids

Stress-strain relationship, Hooke's law, Young's modulus, bulk modulus, shear modulus,
Poisson’s ratio and elastic energy

Chapter–10: Mechanical Properties of Fluids

Pressure due to a fluid column; Pascal's law and its applications (hydraulic lift and hydraulic
brakes), effect of gravity on fluid pressure.

Viscosity, Stokes' law, terminal velocity, streamline and turbulent flow, critical velocity,
Bernoulli's theorem and its applications.

Surface energy and surface tension, angle of contact, excess of pressure across a curved
surface, application of surface tension-ideas to drops, bubbles and capillary rise.

Chapter–11: Thermal Properties of Matter

Heat, temperature, thermal expansion; thermal expansion of solids, liquids and gases,
anomalous expansion of water; specific heat capacity; Cp, Cv, calorimetry; change of state
- latent heat capacity. Heat transfer-conduction, convection and radiation, thermal
conductivity, Qualitative idea of blackbody radiation, Wien’s Displacement law and Stefan’s law
Unit VIII: Thermodynamics 12 Periods
Chapter–12: Thermodynamics

Thermal equilibrium and definition of temperature, zeroth law of thermodynamics, heat,
work and internal energy. First law of thermodynamics, isothermal and adiabatic processes.

Second law of thermodynamics: reversible and irreversible processes, Cyclic Processes.
Unit IX: Behaviour of Perfect Gases and Kinetic Theory of Gases. 10 Periods
Chapter–13: Kinetic Theory

Equation of state of a perfect gas, work done in compressing a gas.

Kinetic theory of gases - assumptions, concept of pressure. Kinetic interpretation of
temperature; rms speed of gas molecules; degrees of freedom, law of equi-partition of
energy (statement only) and application to specific heat capacities of gases; concept of
mean free path, Avogadro's number.

Unit X: Oscillations and Waves 28 Periods
Chapter–14: Oscillations
Periodic motion - time period, frequency, displacement as a function of time, periodic
functions. Simple harmonic motion (S.H.M) and its equation; phase; oscillations of a loaded
spring- restoring force and force constant; energy in S.H.M. Kinetic and potential energies;
simple pendulum, derivation of expression for its time period.

Chapter–15: Waves
Wave motion: Transverse and longitudinal waves, speed of travelling wave,
displacement relation for a progressive wave, principle of superposition of waves,
reflection of waves, Standing waves in strings and organ pipes: fundamental mode and
harmonics, Beats.

PRACTICALS Total Period : 60
The record, to be submitted by the students, at the time of their annual examination, has to
include:
• Record of at least 15 Experiments [with a minimum of 6 from each section],
to be performed by the students.
• Record of at least 5 Activities [with a minimum of 2 each from section A and
section B], to be demonstrated by the teachers.
• Report of the project to be carried out by the students.

EVALUATION SCHEME

Time Allowed: Three hours Max. Marks: 30
Two experiments one from each section 8+8 Marks
Practical record (experiment and activities) 6 Marks
Investigatory Project 3 Marks
Viva on experiments, activities and project 5 Marks
Total 30 Marks

SYLLABUS FOR PHYSICS PRACTICAL
Total Marks-30
Section-A
Experiments:
1. Use of Vernier Callipers
(i) To measure diameter of a small spherical/cylindrical body.
(ii) To measure dimensions of a given regular body of known mass and hence fmd its
density.
(iii) To measure internal diameter and depth of a given beaker/calorimeter and
hence finds

its volume.
2. Use of screw gauge.
(i) To measure diameter of a given wire.
(ii) To measure thickness of a given sheet. (iii) To measure volume of an irreguler lamina.
3. To determine radius of curvature of a given spherical surface by a spherometer.
4. To determine the mass of two different objects using a beam balance.
5. To find the weight of a given body using parallelogram law of vectors.
6. Using a simple pendulum, plot L- T and L-T2 graphs. Hence find the effective length of a
second's pendulum using appropriate graphs.
7. To study the relationship between force of limiting friction and normal reaction and find the
coefficient of friction between a block and a horizontal surface.
8. To find the downward force, along an inclined plane, acting on a roller due to gravitational pull
of the earth and study its relationship with the angle of inclination by plotting graph
between force and sin of angle of inclination .

Activities :

1. To make a paper scale of given least count, e.g. O.2cm. O.5cm.
2. To determine mass of a given body using a meter scale by principle of moments.
3. To plot of graph for a given set of data, with proper choice of scales and error bars.
4. To measure the force of limiting friction for rolling of a roller on a horizontal plane.
5. To study the variation in the range of a jet of water with the angle of projection.
6. To study the conservation of energy of a ball rolling down on inclined plane (using a double
inclined plane).
7. To study dissipation of energy of a simple pendulum by plotting a graph between square of
amplitude and time.
Section-B
Experiments :

1. To determine young's modulus of elasticity of the material of a given wire.
2. To find the force constant and effective mass of a helical spring by plotting T2-m graph
method of oscillation.
3. To study the variation in volume with pressure for a sample of air at constant temperature
by plotting graphs between P and V, and between P and 1IV.
4. To determine the surface tension of water by capillary rise method.
5. To determine the coefficient of viscosity of a given viscous liquid by measuring the terminal
velocity of a given spherical body.
6. To determine the Sp. Heat capacity of a given solid by method of mixture
7. (i)To study the relation between frequency and length of a given wire under constant
tension using sonometer.
(ii)To study the relation between the length of a given wire tension for constant
frequency using sonometer
8. To find the speed of sound in air at room temperature using a resonance tube by two
resonance position.
9. To determine specific heat capacity of a given (i) solid (ii) liquid, by method of mixtures.

Activities :

1. To observe the decease in bressure with increase in velerity of a fluid.
2. To observe and explain the effect of heating on a bi-metallic strip.
3. To note the change in level of liquid in a container on heating and interpret the observation.
4. To study the effect of detergent on surface tension of water by observing capillary rise.
5. To study the factors affecting the rate of loss of heat of a liquid.
6. To study the effect of load on depression of a suitably clamped meter scale loaded
(i) at its end
(ii) in the middle.

Prescribed Textbook:
(English Medium)
1. Physics Part-I, Textbook for Class XI, Published by NCERT.
2. Physics Part-II, Textbook for Class XI, Published by NCERT.
3. Laboratory Manual of Physics, Class XI, Published by NCERT.
(Assamese Medium)
1. Padartha Bigyan, Pratham Bhag, Published by AHSEC
2. Padartha Bigyan, Dwitiya Bhag, Published by AHSEC