Class 11 Physics Learning Resources

Welcome to the Class 11 Physics section. Here you will find chapter-wise notes. Moreover, You will find formula sheets, MCQs and conceptual explanations. These resources are very useful for competitive examinations. Every chapter is prepared in a simple and student-friendly manner.

Image of Myself in Physics Lab:

About This Section

This page is specially designed for CBSE Class 11 students as well as aspirants preparing for NEET and JEE. Physics is one of the most important subjects in science because it explains the fundamental laws of nature. It helps students develop logical thinking and problem-solving skills.

In addition to detailed notes, students will also find concise Formula Sheets for quick revision before school examinations, board examinations, NEET and JEE. These formula sheets include all important equations, definitions and key concepts in a well-organized format.

To strengthen conceptual understanding, each chapter also contains Multiple Choice Questions (MCQs). These questions help students practice regularly and improve their confidence. Many questions are useful for CBSE school examinations, competitive examinations and objective tests.

About the Author:

The notes are prepared by Er. Birendra Pratap Singh, an experienced PGT Physics teacher with many years of classroom teaching experience.

We explain how to solve numerical problem in the the examinations.

We discus the concepts how to solve numerical quickly and logically.

Syllabus of Class 11 Physics

This website provides chapter-wise Physics Notes based on the latest NCERT syllabus. Every chapter is explained in simple and easy language so that students can understand concepts clearly instead of memorizing formulas.

The Class 11 Physics syllabus has 14 chapters.

Chapter includes,

1. Units and Measurements
2. Motion in a Straight Line
3. Motion in a Plane
4. Laws of Motion
5. Work, Energy and Power
6. Rotational Motion,
7. Gravitation
8. Mechanical Properties of Solids
9. Mechanical Properties of Fluids
10. Thermal Properties of Matter
11. Thermodynamics
12. Kinetic Theory of Gases
13. Oscillations
14. Waves.

A strong understanding of these above chapters builds the foundation for Class 12 Physics and higher studies in engineering and medical entrance examinations.

We will update this page regularly with new study materials, revision notes, practice questions, blogs and educational resources.

We encourage the Students to visit frequently to access the latest content.

If you are looking for reliable, well-structured and easy-to-understand Physics study material, you are at the right place. Study regularly, revise consistently and practice MCQs to achieve excellent results in CBSE examinations as well as NEET and JEE.

Happy Learning and Best Wishes for your success!

Internal Link:

You may also visit Class 12 Physics, Physics Blog and eBook section.

1. Class 12 Physics
2. Physics Blogs
3. eBooks

External Link

Visit NCERT for official Physics textbooks

NCERT

Class 11 Physics Notes, Formula Sheet & MCQs

Chapter-1: Units and Measurements

• Notes
• Formulae Sheet
• MCQs
  Welcome to your 11 Physics Ch-1: Units and Measurement

  1. 

  The number of significant digits in 234000 and 1.000 is respectively

  (a) 3 and 4

  (b) 6 and 1

  (c) 6 and 4

  (d) 3 and 1

  None

  2. 

  Which of the following pairs does not have same dimensions?

  (a) Angular momentum and Planck’s constant

  (b) Moment of inertia and moment of force

  (c) Impulse and momentum

  (d) Work and torque

  None

  3. 

  Which of the following is not equal to watt?

  (a) J/s

  (b) ampere x volt

  (c) ampere/volt

  (d) (ampere)² x ohm

  None

  4. 

  The equation of a wave is given by y = a sin ω (x/v-k), ω is the angular velocity and v is the linear velocty, x is the distance. The dimensions of k will be

  (a) [T²]

  (b) [T⁻¹]

  (c) [T]

  (d) [LT]

  None

  5. 

  If the energy (E), velocity (v) and force (F) be taken as fundamental quantities, then the dimensions of mass will be

  (a) [Fv⁻²]

  (b) [Ev⁻²]

  (c) [Fv⁻¹]

  (d) [Ev²]

  None

  6. 

  The ratio of the dimensions of Plank's constant and that of the moment of inertia is the dimension of

  (a) frequency

  (b) velocity

  (c) anular momentum

  (d) time

  None

  7. 

  Which of the following sets cannot enter into the list of fundamental quantities in any system of units?

  (a) length, mass and density

  (b) length, time and velocity

  (c) mass, time and velocity

  (d) length, time and mass

  None

  8. 

  A physical quantity A is dependent on other four physical quantities p, q, r and s as given by A = √(pq)/r²s³. The percentage rror of measurement in p, q, r and s are 1%, 3%, 0.5% and 0.33% respectively, then the maximum percentage error in A is:

  (a) 2%

  (b) 0%

  (c) 4%

  (d) 3%

  None

  9. 

  The mass of a ball is 1.76 kg. The mass of 25 such balls is:

  (a) 0.44 x 10³ kg

  (b) 44.0 kg

  (c) 44 kg

  (d) 44.00 kg

  None

  10. 

  The number of significant figures in 6.0023 are

  (a) 2

  (b) 5

  (c) 4

  (d) 3

  None

  11. 

  The length and breadth of a metal sheet are 3.124 m and 3.002 m respectively. The area of this sheet up to correct significant figure is:

  (a) 9.378 m²

  (b) 9.37 m²

  (c) 9.4 m²

  (d) None of these

  None

  12. 

  If percentage error in measurement of a radius of a sphere is 1%, what will be the error in measurement of volume?

  (a) 1 %

  (b) 1/3 %

  (c) 3 %

  (d) None of these

  None

  13. 

  A force F is applied on a square plate od side L. If the percentage error in the measurement of L is 2 % and in F is 4 %, what is the permissible error in pressure?

  (a) 8 %

  (b) 12 %

  (c) 10 %

  (d) 5 %

  None

  14. 

  Calculate the equivalent resistance of two resistors R₁ and R₂ in parallel where R₁ = (6 ± 0.2) ohm and R₂ = (3 ± 0.1) ohm.

  (a) (2 ± 0.07) ohm

  (b) (2 ± 0.2) ohm

  (c) (9 ± 0.3) ohm

  (d) None of the above

  None

  15. 

  Round to the appropriate number of significant digits: 13.214 + 234.6 + 7.0350 + 6.38

  (a) 261.1990

  (b) 261.199

  (c) 261.19

  (d) 261.2

  None

  16. 

  Simplify and round to the appropriate number of significant digits: 16.235 x 0.217 x 5

  18

  17.615

  17.6

  20

  None

  17. 

  A force is given by F = at + bt², where t is the time. The dimensions of a and b are

  (a) [MLT⁻⁴] and [MLT]

  (b) [MLT⁻¹] and [MLT⁰]

  (c) [MLT⁻³] and [MLT⁻⁴]

  (d) [MLT⁻³] and [MLT⁰]

  None

  18. 

  The physical quantity having the dimensions [M⁻¹L⁻³T³A²] is

  (a) resistance

  (b) resistivity

  (c) electrical conductivity

  (d) electromotive force

  None

  19. 

  The respetive number of significant figures for the numbers 23.023, 0.0003 and 2.1 x 10⁻³ are

  (a) 4, 4, 2

  (b) 5, 1, 2

  (c) 5, 1, 5

  (d) 5, 5, 2

  None

  20. 

  Which of the following quantities is dimensionless?

  (a) Gravitational constant

  (b) Planck’s constant

  (c) Power of a convex lens

  (d) None

  None

  Previous Start Quiz Next
  

  Time’s up

Chapter-2: Motion in a Straight Line

• Notes
• Formulae Sheet
• MCQS
  Welcome to your 11 Physics Ch-2: Motion in Straight Line

  1. 

  The area under the acceleration-displacement graph represents

  (a) velocity (v)

  (b) v²/2

  (c) change in velocity

  (d) none

  None

  2. 

  The area under the velocity-time graph represents

  (a) displacement

  (b) acceration

  (c) change in velocity

  (d) none

  None

  3. 

  A particle covers half of its total distance with constant speed v₁ and the rest half distance with constant speed v₂. Its average speed during the complete journey is:

  (a) (2v₁ v₂)/(v₁ + v₂)

  (b) (v₁ v₂)/(v₁ + v₂)

  (c) (v₁ + v₂)/2

  (d) none

  None

  4. 

  A body is moving along a stright line path with constant velocity. At an instant of time, the distance travelled by it is S and its displacement is D., then

  (a) D < S

  (b) D > S

  (c) D = S

  (d) D ≤ S

  None

  5. 

  A car travells half of its distance with constant velocity of 40 km/hr and remaining half with constant velocity of 60 km/hr. The average speed of the car in km/hr is

  (a) 40 km/hr

  (b) 45 km/hr

  (c) 48 km/hr

  50 km/hr

  None

  6. 

  The three initial and final position position of a man on the x-axis are given as: (i) (-8m, 7m), (ii) (7m, -3m) and (iii) (-7m, 3m). Which pair gives the negative displacement?

  (a) (i)

  (b) (ii)

  (c) (iii)

  (d) (i) and (iii)

  None

  7. 

  An athlete completes one round of a circular track of radius R is 40 sec. What will be his displacement at the end of 2 min 2 sec?

  (a) zero

  (b) 2 R

  (c) 2 πR

  (d) 7 πR

  None

  8. 

  The numerical ratio of displacement to the distance is always

  (a) less than 1

  (b) equal to 1

  (c) equal to or less than 1

  (d) equal to or greater than 1

  None

  9. 

  Mohan reached the metro station and found that the escalator was not working. He walked up the stationary escalator in time time t₁. On the other days, if he remains stationary on the moving escalator, then the escalator takes himup in time t₂. The time taken by him to walk on the moving escalator will be

  (a) (t₁ + t₂)/2

  (b) t₁ t₂ /t₂-t₁

  (c) t₁ t₂/t₂+t₁

  (d) t₁ – t₂

  None

  10. 

  Two bodies are trown vertically upwards with their initial speed in the ratio 2:3. The ratio of maximum heights reached by them and the ratio of time taken by them to the ground respectively are

  (a) 4:9 and 2:3

  (b) 2:3 and √2 :√3

  (c) √2 :√3 and 4:9

  (d) √2 :√3 and 2 ; 3

  None

  11. 

  Two trains, each, 50 m long are travelling in opposite direction with velocity 10 m/s and 15 m/s. The time of crossing is

  (a) 2 s

  4 s

  2√3 s

  4√3 s

  None

  12. 

  A particle has initial velocity of 3î + 4ĵ and an acceleration of 0.4î + 0.3ĵ. Its speed after 10 s is

  (a) 10 units

  (b) 7 units

  (c) 8.5 units

  (d) 7√2 units

  None

  Previous Start Quiz Next
  

  Time’s up

Chapter-3: Motion in a Plane

• Notes
• Formulae Sheet
• MCQs
  Welcome to your 11 Physics Ch-3: Motion in a Plane

  1. 

  The range of a particle is R when the angle of projection is 40⁰. For the same velocity and projection and range, the other possible angle of projection is:

  45⁰

  50⁰

  60⁰

  40⁰

  None

  2. 

  For an object thrown at 45⁰ to the horizontal, the maximum height H and horizontal range R are related as:

  R = 16 H

  R = 8 H

  R = 4 H

  R = 2 H

  None

  3. 

  A particle moves in the xy-plane from position (2m, 4m) to (6m, 8m) in 2 s. Magnitude and direction of average velocity is

  √2 m/s and 45⁰

  2√2 m/s and 45⁰

  4√2 m/s and 30⁰

  3√2 m/s and 60⁰

  None

  4. 

  The position vector of an object at any time t is given by 3t² î + 6t ĵ + k̂. Its velocity along y-axis has the magnitude

  6t

  6

  0

  9

  None

  5. 

  None

  6. 

  An object moves at a constant speed along a circular path in a horizontal x-y plane, with the centre at the origin. When the object is at x =-2m, its velocity is (4m/s)(- ĵ). What is the object's acceleration when it is y = 2 m?

  8m/s² (-ĵ)

  4 m/s² (- ĵ)

  8 m/s² (-î)

  4 m/s² (î)

  None

  7. 

  If a(r) and a(t) represent radial and tangential acceleration, the motion of a particle will be uniformly circular if

  a(r) = 0, a(t) = 0

  a(r) = 0 but a(t) ≠ 0

  a(r) ≠ 0 but a(t) = 0

  a(r) ≠ 0, a(t) ≠ 0

  None

  8. 

  Ratio between maximum range and square of time of flight in projectile motion is

  10 : 49

  49 : 10

  98 : 10

  10 : 98

  None

  9. 

  A particle moves in a plane with constant acceleration in a direction different from initial velocity. The path of the particle will be

  a straight line

  an arc of a circle

  a parabola

  an ellipse

  None

  10. 

  The compnent of vector A =î + ĵ along vector B =î – ĵ is

  ĵ

  î

  zero

  î – ĵ

  None

  Previous Start Quiz Next
  

  Time’s up

Chapter-4: Laws of Motion

• Notes
• Formulae Sheet
• MCQs
  Welcome to your Class 11 Physics- Ch-4-Laws of Motion

  1. 

  Impulse is equal to

  (a) change in momentum

  (b) rate of change in momentum

  (c) force

  (d) energy

  None

  2. 

  The resultant of two forces, one double the other in magnitude, is perpendicular to the smaller of two forces. The angle between the two forces is

  (a) 120⁰

  (b) 60⁰

  (c) 90⁰

  (d) 150⁰

  None

  3. 

  A particle is moving with a constant speed along a straight line path. A force is not required to

  (a) increase its speed

  (b) decrease the momentum

  (c) change the direction

  (d) keep it moving with uniform velocity

  None

  4. 

  When a bus suddenly takes a turn, the passengers are thrown outwards because of

  (a) inertia of direction

  (b) acceleration of the motion

  (c) speed of motion

  (d) both (b) and (c)

  None

  5. 

  The velocity of a body of mass 20 kg decreases from 20 m/s to 5 m/s in a distance of 100 m. Force on the body is

  (a) -27.5 N

  (b) -47.5 N

  (c) -37.5 N

  (d) -67.5 N

  None

  6. 

  Which of the following quantities measured from different inertial reference frames are same?

  (a) Force

  (b) Velocity

  (c) Displacement

  (d) Kinetic Energy

  None

  7. 

  A person is standing in an elevator. In which situation, he finds his weight less than actual weight?

  (a) The elevator moves upward with constant acceleration.

  (b) The elevator moves downward with constant acceleration

  (c) The elevator moves upward with uniform velocity.

  (d) The elevator moves downward with uniform velocity.

  None

  Previous Start Quiz Next
  

  Time’s up

Chapter-5:Work, Energy and Power

• Notes
• Formulae Sheet

• MCQS
  Welcome to your 11Physics Ch-5: Work-Energy & Power

  1. 

  In a graph of F(x) vs. x, the area under the curve represents the

  energy of F(x)

  work done by F(x).

  impulse of F(x)

  momentum of F(x)

  None

  2. 

  Work-energy theorem is applied for

  constant force only

  variable force only

  both conservative forces and non-conservative force

  conservative or non-conservative, external or internal forces

  None

  3. 

  If work done by conservative force is negative, then potential energy associated with that force should

  increase

  decrease

  remain same

  none

  None

  Previous Start Quiz Next
  

  Time’s up

Chapter-6: System of Particle & Rotational Motion

• Notes
• Formulae Sheet
• MCQS

Chapter-7: Gravitation

• Notes
• Formulae Sheet
• MCQs

Chapter-8: Mechanical Properties of Solids

• Notes
• Formulae Sheet
• MCQS

Chapter-9: Mechanical Properties of Fluids

• Notes
• Formulae Sheet
• MCQs

Chapter-10: Thermal Properties of Matter

• Notes

• Formulae Sheet
• MCQS

Chapter-11: Thermodynamics

• Notes
• Formulae Sheet
• MCQs

Chapter-12: Kinetic Theory of Gases

• Notes
• Formulae Sheets
• MCQs

Chapter-13: Oscillations

• Notes
• Formulae Sheet
• MCQs

Chapter-14: Waves

• Notes

• Formulae Sheet
• MCQs