Welcome to the FSc Online. Here we are providing the inter Part-I (11th class) annual exams 2021 guess papers. The Punjab Board has announced the 11th class annual exams date sheet 2021. According to the announced schedule, the first paper of the 11th will be on 07 August 2021. So, to assist the students, here we are providing Physics guess papers.

This year, the Punjab Board announced a smart syllabus for the 11th class to study specific topics. At the same time, through the guess papers, students get an idea regarding the important points in the syllabus. Through these guesses, you will hopefully secure excellent marks in the annual exams. However, the uploaded guess papers are according to the topics of the smart syllabus. Thus, to get the guess papers, scroll down your screen.

**See Also: Maths 11th Class Notes**

**11th Class (1st Year) Physics (Guess Paper) Important Short ****Question**

**Chapter 1:** precision and accuracy definitions, + all exercise questions

**Chapter 2:** complete chapter along with numerical

**Chapter 3:** Definitions of elastic collision, inelastic collision, vector, torque, null

vector, isolated system, range of the projectile, projectile motion, momentum, time of

flight of projectile

Exercise short questions: 3.2 – 3.10

**Chapter4:** Definitions of work, energy, power, and their units, energy and its

types escape velocity, work-energy principle, Ex Questions: 4.1-4.5, 4.10

**Chapter: 5:** all exercise questions

**Chapter 6:** Exercise short questions (6.2 – 6.8) + definitions of terminal velocity,

fluid dynamics, the venturi effect, Stokes’ law, equation of continuity, Bernoulli’s

equation,

**Chapter 7:** Ex questions 7.1, 7.2, 7.4, 7.5 – 7.10

**Chapter 8:** Ex questions 8.4 – 8.8 + definitions of stationary waves, periodic

waves, beats

**Chapter 9:** Definitions of the wavefront, Hygen’s principle, diffraction, uses and

properties of x-rays, Ex Questions 9.1-9.7

**Chapter 10**: Definitions of critical angle, refractive index, total internal reflection,

a convex lens, and the concave lens, resolving power and magnification + Ex

Questions 10.1-10.5

**Chapter 11:** Heat and temperature, the molar specific heat of gas, reversible

process, kinetic theory of gas, Boyl’s Law, entropy and negative entropy, Ex

Questions: 11.5 -11.13

**See Also: Physics 1st Year 2021 Punjab Board Paper Scheme**

**11th Class (1st Year) Physics (Guess Paper) Important Long ****Question And Numericals**

**Chapter 2:**

1. EXAMPLE NO: 2.5 (from chapter 2)

2. Explain the cross product or vector of two vector state right-hand rule and give at

At least four characteristics. 3. Define vector product or cross product. Explain with

right-hand rule and give four characteristics of the cross product.

Chapter 3

4. State and explain the law of conservation of linear momentum.

5. What is projectile? Derive expressions of the i) Maximum Height ii) Horizontal

range.

6. Find the angle of projection of a projectile for which its maximum height and

horizontal range are equal.

7. Define Elastic and Inelastic collision. Discuss elastic collision in one dimension

and show that velocity of approach is equal to the velocity of separation

NUMERICAL: 3.5, 3.10, 3.11 +Examples 3.2, 3.7

**Chapter 4**

8. Define escape velocity. Derive an expression of escape velocity and calculate its

value on the Earth’s surface.

9. Define absolute potential energy. Derive its mathematical expression.

10. Define gravitational field. Show that the gravitational field is conservative.

NUMERICAL: 4.3, 4.4, 4.7, 4.8 + Examples 4.3

**Chapter 5**

11. Explain Rotational kinetic energy. Find the rotational kinetic energy of a disc and

hoop.

12. What are geostationary satellites? Derive the relation/expression for the radius of

geostationary orbit.

NUMERICAL: 5.6, 5.3, 5.10

**Chapter 6**

13. State Bernoulli’s theorem. Also, derive Bernoulli’s equation.

14. An airplane wing is designed so that the speed of the air across the top of the

wing is 450 ms-1 the speed of air below the wing is 410 ms-1. What is the pressure

difference between the top and bottom of the wings? Density of air = 1.29 kgm-1

15. What gauge pressure is required in the city mains for a stream from a fire hose

connected to the mains to reach a vertical height of 15 m?

NUMERICALS: 6.1

**Chapter 7:**

16. Prove that the total energy of amass spring system remains constant.

17. What is a simple pendulum? Show that the motion of the simple pendulum is simple

harmonic motion. Also, calculate the time period of the simple pendulum.

NUMERICAL: 7.1, 7.3 , 7.4, 7.5

**Chapter 8:**

18. Show that vt = ve + 0.61t

19. Derive Newton’s formula for the speed of sound in air and describe the

correction by Laplace in it.

20. Describe the transverse stationary waves in a stretched string. Show that the

frequencies of stretched string are quantized.

20. Define Doppler’s effect, Derive apparent frequency if. a) Observer moves

towards the stationary source b) Observer moves away from the stationary source.

NUMERICAL: 8.5, 8.6

**Chapter 9**

21. Discuss in detail Young’s double-slit experiment to study the interference

of light.

NUMERICAL: 9.7