# Complete Syllabus of Physics | Grade XI | NEB (Updated Physics Syllabus - 2076/2020)

Complete Syllabus of Physics Grade 11-XI neb 2076-2020
DR Gurung
National Examination Board (NEB)
Physics
Subject Code - 101
Credit Hours - 5
Working hours - 160
Last Updated: August 18, 2020
New Curriculum and Syllabus of Physics Grade/Class XI/11 of the year 2076/2020.

### 1. Physical Quantities [3 Teaching hours]

1.1 Demonstrate the meaning, importance and applications of precision in the measurements
1.2 Understand the meaning and importance of significant figures in measurements
1.3 Explain the meaning of dimensions of a physical quantity
1.4 Workout the dimensions of derived physical quantities applicable to this syllabus
1.5 Apply dimensional analysis method to check the homogeneity of physical equations

### 2. Vectors [4 Teaching hours]

2.1 Distinguish between scalar and vector quantities
2.2 Add or subtract coplanar vectors by drawing scale diagram (vector triangle, parallelogram or polygon method)

2.3 Understand the meaning and importance of unit vectors
2.4 Represent a vector as two perpendicular components
2.5 Resolve co-planer vectors using component method
2.6 Describe scalar and vector products
2.7 Understand the meaning and applications of scalar and vector product with examples
2.8 Solve related problems.

### 3. Kinematics [5 Teaching hours]

3.1 Define displacement, instantaneous velocity and acceleration with relevant examples
3.2 Explain and use the concept of relative velocity
3.3 Draw displacement-time and velocity-time graph to represent motion, and determine
velocity from the gradient of displacement-time graph, acceleration from the gradient of velocity-time graph and displacement from the area under a velocity-time graph
3.4 Establish equations for a uniformly accelerated motion in a straight line from graphical representation of such motion and use them to solve related numerical problems
3.5 Write the equations of motion under the action of gravity and solve numerical problem related to it
3.6 Understand projectile motion as motion due to a uniform velocity in one direction and a uniform acceleration in a perpendicular direction, derive the equations for various physical quantities (maximum height, time of flight, time taken to reach maximum height, horizontal range, resultant velocity) and use them to solve mathematical problems related to projectile motion

### 4. Dynamics [6 Teaching hours]

4.1 Define linear momentum, impulse, and establish the relation between them
4.2 Define and use force as rate of change of momentum
4.3 State and prove the principle of conservation of linear momentum using Newton’s second and Newton’s third of motion

4.4 Define and apply moment of a force and torque of a couple
4.5 State and apply the principle of moments
4.6 State and apply the conditions necessary for a particle to be in equilibrium
4.7 State and explain the laws of solid friction
4.8 Show the coefficient of friction is equal to the tangent of angle of repose and use the concept to solve problems.
4.9 Solve the numerical problem and conceptual question on dynamics

### 5. Work, energy and power: [6 Teaching hours]

5.1 Explain work done by a constant force and a variable force
5.2 State and prove work-energy theorem
5.3 Distinguish between kinetic energy and potential energy and establish their formulae
5.4 State and prove the principle of conservation of energy
5.5 Differentiate between conservative and non-conservative force
5.6 Differentiate between elastic and inelastic collision and hence explain the elastic collision in one dimension
5.7 Solve the numerical problems and conceptual questions regarding work, energy, power and collision

### 6. Circular motion [6 Teaching hours]

6.1 Define angular displacement, angular velocity and angular acceleration
6.2 Establish the relation between angular and linear velocity & acceleration
6.3 Define centripetal force
6.4 Derive the expression for centripetal acceleration and use it to solve problems related to centripetal force

6.5 Describe the motion in vertical circle, motion of vehicles on banked surface
6.6 Derive the period for conical pendulum
6.7 Solve the numerical problem and conceptual question on circular motion

### 7. Gravitation [10 Teaching hours]

7.1 Explain Newton’s law of gravitation
7.2 Define gravitational field strength
7.3 Define and derive formula of gravitational potential and gravitational potential energy
7.4 Describe the variation in value of ‘g’ due to altitude and depth
7.5 Define center of mass and center of gravity
7.6 Derive the formula for orbital velocity and time period of satellite
7.7 Define escape velocity and derive the expression of escape velocity
7.8 Find the potential and kinetic energy of the satellite
7.9 Define geostationary satellite and state the necessary conditions for it
7.10 Describe briefly the working principle of Global Position -System (GPS)
7.11 Solve the numerical problems and conceptual questions regarding related to the gravitation

### 8. Elasticity [5 Teaching hours]

8.1 State and explain Hooke’s law
8.2 Define the terms stress, strain, elasticity and plasticity
8.3 Define the types of elastic modulus such as young modulus, bulk modulus and shear modulus
8.4 Define Poisson’s ratio

8.5 Derive the expression for energy stored in a stretched wire
8.6 Solve the numerical problems and conceptual questions regarding elasticity

### Content Area: Heat and Thermodynamics

9. Heat and temperature [3 Teaching hours]
9.1 Explain the molecular concept of thermal energy, heat and temperature, and cause and direction of heat flow
9.2 Explain the meaning of thermal equilibrium and Zeroth law of thermodynamics.
9.3 Explain thermal equilibrium as a working principle of mercury thermometer.

### 10. Thermal Expansion [4 Teaching hours]

10.1 Explain some examples and applications of thermal expansion, and demonstrate it with simple experiments.
10.2 Explain linear, superficial, cubical expansion and define their corresponding coefficients with physical meaning.
10.3 Establish a relation between coefficients of thermal expansion.
10.4 Describe Pullinger’s method to determine coefficient of linear expansion.

10.5 Explain force set up due to expansion and contraction.
10.6 Explain differential expansion and its applications.
10.7 Explain the variation of density with temperature.
10.8 Explain real and apparent expansion of liquid appreciating the relation r = g +a.
10.9 Describe Dulong and Petit’s experiment to determine absolute expansivity of liquid.
10.10 Solve mathematical problems related to thermal expansion.

### 11. Quantity of Heat [6 Teaching hours]

11.1 Define heat capacity and specific heat capacity and explain application of high specific heat capacity of water and low specific heat capacity of cooking oil and massage oil
11.2 Describe Newton’s law of cooling with some suitable daily life examples.
11.3 Explain the principle of calorimetry and describe any one standard process of determining specific heat capacity of a solid
11.4 Explain the meaning of latent heat of substance appreciating the graph between heat and temperature and define specific latent heat of fusion and vaporization.
11.5 Describe any one standard method of measurement of specific latent heat of fusion and explain briefly the effect of external pressure on boiling and melting point.
11.6 Distinguish evaporation and boiling.
11.7 Define triple point.
11.8 Solve mathematical problems related to heat

### 12. Rate of heat flow [5 Teaching hours]

12.1 Explain the transfer of heat by conduction, convection and radiation with examples and state their applications in daily life.
12.2 Define temperature gradient and relate it with rate of heat transfer along a conductor.
12.3 Define coefficient of thermal conductivity and describe Searl’s method for its determination.
12.4 Relate coefficient of reflection (r), coefficient of transmission (t) and coefficient of absorption (r + a + t = 1).

12.5 Explain ideal radiator (e= 1, a =1) and black body radiation.
12.6 State and explain Stefan’s law of black body radiation using terms; emissive power and emissivity.
12.7 Describe idea to estimate apparent temperature of sun.
12.8 Solve mathematical problems related to thermal conduction and black body radiations.

### 13. Ideal gas [8 Teaching hours]

13.1 Relate pressure coefficient and volume coefficient of gas using Charles’s law and Boyle’s law.
13.2 Define absolute zero temperature with the support of P - V, V- T graph.
13.3 Combine Charles’s law and Boyle’s law to obtain ideal gas equation.
13.4 Explain molecules, inter molecular forces, moles and Avogadro’s number.
13.5 Explain the assumptions of kinetic – molecular model of an ideal gas.
13.6 Derive expression for pressure exerted by gas due to collisions with wall of the container appreciating the use of Newton’s law of motion.
13.7 Explain the root mean square speed of gas and its relationship with temperature and molecular mass.

13.8 Relate the pressure and kinetic energy.
13.9 Calculate the average translational kinetic energy of gas for 1 molecule and Avogadro’s number of molecules.
13.10 Solve mathematical problems related ideal gas.

### 14. Reflection at curved mirrors [2 Teaching hours]

14.1 State the relation between object distance, image distance and focal length of curved mirrors
14.2 State the relation between object size and image size
14.3 Know the difference between the real and virtual image in geometrical optics
14.4 Calculate the focal length of curved mirrors and its applications

### 15. Refraction at plane surfaces [4 Teaching hours]

15.1 Recall the laws of refraction
15.2 Understand the meaning of lateral shift
15.3 Understand the meaning of refractive index of a medium
15.4 Calculate refractive index of a medium using angle of incidence and angle of refraction
15.5 Learn the relation between the refractive indices
15.6 Know the meaning of total internal reflection and the condition for it

15.7 Understand critical angle and learn the applications of total internal reflection
15.8 Explain the working principle of optical fiber

### 16. Refraction through prisms: [3 Teaching hours]

16.1 Understand minimum deviation condition
16.2 Discuss relation between angle of prism, angle of minimum deviation and refractive index
16.3 Use above relations to find the values of refractive index of the prism
16.4 Understand deviation in small angle prism and learn its importance in real life

### 17. Lenses [3 Teaching hours]

17.1 State properties of Spherical lenses
17.2 State the relation between object distance, image distance and focal length of a convex lens
17.3 Define visual angle and angular magnification
17.4 Derive Lens maker’s formula and use it to find focal length

### 18. Dispersion [3 Teaching hours]

18.1 Understand pure spectrum
18.2 Learn the meaning of dispersive power
18.3 Discuss chromatic and spherical aberration
18.4 Discuss achromatism in lens and its applications

### 19. Electric charges [3 Teaching hours]

19.1 Understand the concept of electric charge and charge carriers
19.2 Understand the process of charging by friction and use the concept to explain related day to day observations

19.3 Understand that, for any point outside a spherical conductor, the charge on the sphere may be considered to act as a point charge at its centre
19.4 State Coulomb’s law
19.5 Recall and use 𝐹 = 􀯊􀯤 􀬸􀰗􀰌􀳚􀯥􀰮 for the force between two point charges in free space or air
19.6 Compute the magnitude and direction of the net force acting at a point due to multiple charges

### 20. Electric field: [3 Teaching hours]

20.1 Describe an electric field as a region in which an electric charge experiences a force
20.2 Define electric field strength as force per unit positive charge acting on a stationary point charge
20.3 Calculate forces on charges in uniform electric fields of known strength 20.4 Use 𝐸 = 􀯊
􀬸􀰗􀰌􀳚􀯥􀰮 strength of a point charge in free space or air
20.5 Illustrate graphically the changes in electric field strength with respect distance from a point charge
20.6 Represent an electric field by means of field lines
20.7 Describe the effect of a uniform electric field on the motion of charged particles
20.8 Understand the concept of electric flux of a surface
20.9 State Gauss law and apply it for a field of a charged sphere and for line charge
20.10 Understand that uniform field exists between charged parallel plates and sketch the field lines

### 21. Potential, potential difference and potential energy [4 Teaching hours]

21.1 Define potential at a point as the work done per unit positive charge in bringing a small test charge from infinity to the point
21.2 Use electron volt as a unit of electric potential energy
21.3 Recall and use 𝑉 = 􀯊 􀬸􀰗􀰌􀳚􀯥 for the potential in the field of a point charge
21.4 Illustrate graphically the variation in potential along a straight line from the source charge and understand that the field strength of the field at a point is equal to the negative of potential gradient at that point

21.5 Understand the concept of equipotential lines and surfaces and relate it to potential difference between two points
21.6 Recall and use 𝐸 = Δ􀯏 Δ􀯫 to calculate the field strength of the uniform field between charged parallel plates in terms of potential difference and separation

### 22. Capacitor [7 Teaching hours]

22.1 capacitance and capacitor
a. Show understanding of the uses of capacitors in simple electrical circuits
b. Define capacitance as the ratio of the change in an electric charge in a system to the corresponding change in its electric potential and associate it to the ability of a system to store charge
c. Use 𝐶 = 􀯊􀯏
d. Relate capacitance to the gradient of potential-charge graph
22.2 Parallel plate capacitor
a. Derive 𝐶 = 􀰌􀳚􀮺􀯗 , using Gauss law and 𝐶 = 􀯊􀯏 , for parallel plate capacitor
b. Explain the effect on the capacitance of parallel plate capacitor of changing the surface area and separation of the plates
c. Explain the effect of a dielectric in a parallel plate capacitor in
22.3 Combination of capacitors
a. Derive formula for combined capacitance for capacitors in series combinations
b. Solve problems related to capacitors in series combinations
c. Derive formula for combined capacitance for capacitors in parallel combinations
d. Solve problems related to capacitors in parallel combinations
22.4 Energy stored in a charged capacitor
a. Deduce, from the area under the potential-charge graph, the equations 𝐸 = 􀬵􀬶 𝑄𝑉and hence 𝐸 = 􀬵􀬶 𝐶𝑉􀬶 for the average electrical energy of charged capacitor
22.5 Effect of dielectric