PHYSICS TARGET PAPER 2023 CLASS 11- Guess Papers Karachi Board

CHAPTER NO.1 || THE SCOPE OF PHYSICS

SHORT Q/A : 

1. Prove that the following equations are dimensionally correct.

 i) f=1/2l (FL/m)^1/2  ii) v=fλ

2. Dimensions of  Gravitational Constant, Weight, Torque, Angular Momentum, Linear Momentum, Pressure and Kinetic Energy

CHAPTER NO.2 || VECTORS

SHORT Q/A

Prove that (A.B)^2 +(|AxB|)^2 = A^2 B^2

LONG Q/A

Prove that (i) A .B =B .A    (ii) A .(B +C)=A .B+A.C  (iii)  A ×B =-B ×A 

NUMERICALS

Textbook: 8,9, 12,15,16,20,21,22

Past Paper: 2015 Q.2 xii) , 2012 Q.2 (iii)

CHAPTER NO.3 || MOTION

SHORT Q/A

1. Derive an expression for the acceleration of a body sliding down on a frictionless inclined plane. Also show that all the bodies sliding down on frictionless inclined plane have the same acceleration.

2. State and Prove Law of Conservation of Linear Momentum

LONG Q/A

1. Derive expressions for Tension and acceleration when two bodies of unequal masses are connected with ends of a string which passes over a frictionless pulley in such a way that

(i) Both Bodies can move vertically (ii) One body moves vertically and one body moves on horizontal surface

NUMERICALS

Textbook: 2,3,5,11,12,13

Past Paper: 2019 Q.2 (i)  , 2018 Q.2 (xiii)

CHAPTER NO.4 || MOTION IN TWO DIMENSIONS

SHORT Q/A

1. For what value of launch angle maximum height of projectile is equal to 1/3 of its Range?

2. Prove that  v=rw or a=rα

LONG Q/A

Define Projectile Motion. Derive expressions for (i) Total Time of Flight (ii) Maximum Height Reached (iii) Horizontal Range (iv) Trajectory of Projectile

NUMERICALS

Textbook: 6,7,8,9,12

Past Paper: 2015 Q.2 (vii)

CHAPTER NO.5 || TORQUE, ANGULAR MOMENTUM & EQUILIBRIUM

SHORT Q/A

1. Sate and Prove Law of conservation of Angular Momentum.

NUMERICALS

Textbook: 8

Past Paper: 2014 Q.2 (i) , 2012 Q.2 (xi)

CHAPTER NO.6 || GRAVITATION

SHORT Q/A

1. Derive an expression to show the variation of “g” w.r.t. Altitude & Depth

2. How weightlessness is satellites? Derive formula for spinning frequency of space craft to provide artificial gravity.

NUMERICALS

Textbook: 2,4,5,6,9

Past Paper: 2019 Q.2 (iv) , 2017 Q.2 (iv)

CHAPTER NO.7 || WORK, POWER & ENERGY

SHORT Q/A

1. Derive Work-Energy Equation.

LONG Q/A

1. State and Prove Law of conservation of energy for freely falling body.

NUMERICALS

Textbook: 1,5,6,7

Past Paper: 2018 Q.2 (xi) , 2015 Q.2 (iii)

CHAPTER NO.8 || WAVEMOTION & SOUND

SHORT Q/A

1. Show that the projection of a particle executing uniform circular motion is Simple Harmonic Motion.

2. Discuss Newton’s formula for speed of sound in air and discuss how Laplace corrected it.

3.Define Sonometer and discuss the laws of Sonometer.

LONG Q/A

1. What is Doppler’s Effect? Derive expression for Apparent Frequency of sound heard by a listener when: i. Listener moves away/ towards stationary source of sound ii. source of sound moves away/ towards stationary Listener

2. Define Simple Pendulum and Prove that the Motion of Simple Pendulum is simple harmonic motion.

NUMERICALS

Textbook: 2,4,6,7,9,10

Past Paper: 2019 Q.2 (xiv) , 2017 Q.2 (xv), 2012 Q.2 (vii)

CHAPTER NO.9 || NATURE OF LIGHT

SHORT Q/A

1. What is diffraction of light? Differentiate between Fresnel and Fraunhofer Diffraction.

LONG Q/A

1. What is diffraction Grating. Derive expression mλ=2dsinθ

2. What are Newton Rings? How are they Produced? Derive expression nth Bright & Dark Ring.

NUMERICALS

Textbook: 1,3,4,5,7,8

Past Paper: -

CHAPTER NO.10 || GEOMETRICAL OPTICS

SHORT Q/A

1. Derive expression to show the focal length of combination of lenses.

LONG Q/A

1. Define Simple Microscope. Derive expression for the magnification of simple microscope.

2. Define Compound Microscope and derive expression for the angular magnification of compound microscope.

NUMERICALS

Textbook: 3,7,9,12,14

Past Paper: 2018 Q.2 (vi) , 2014 Q.2 (xv)

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