# 1st year physics guess paper

## 1st year physics guess paper on Newsongoogle.com by Bilal Articles

Explore essential 1st year physics guess paper curated by Bilal Articles on Newongoogle.com. Elevate your understanding of key physics concepts with comprehensive and insightful queries, ensuring a solid foundation for academic success. Dive into engaging content designed to enhance your learning experience and excel in your physics studies. Discover a valuable resource for students seeking effective preparation and mastery of 1st physics topics at Newongoogle.com by Bilal Article

**Important short questions chapter wise:**

**Chapter 1**: precision and accuracy definitions, + all exercise questions**Chapter 2**: complete chapter along with numericals**Chapter 3**: Definitions of: elastic collision, inelastic collision, vector, torque, null

vector, isolated system, range of 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 a gas, reversible

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

Questions: 11.5 -11.13

**Important Long Questions and Numerical:**

Chapter 2:

1. EXAMPLE NO: 2.5 (from chapter 2)

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

least four characteristic. 3. Define vector product or cross product. Explain with

right hand rule and give four characteristics of 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 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

NUMERICALS: 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 gravitational field is conservative field.

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

**Chapter 5**

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

hoop.

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

geostationary orbit.

NUMERICALS: 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 total energy of amass spring system remains constant.

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

NUMERICALS: 8.5, 8.6

**Chapter 9**

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

of light.

NUMERICAL: 9.7