Physics Class 10 Karachi Board Past Paper 2023-2024 PDF

Physics Class 10 Karachi Board Target paper 2023-2024 Chapter # 10 General Wave properties Short Section B...

Physics Class 10 Karachi Board Target paper 2023-2024 Chapter # 10 General Wave properties Short Section B Question Q 1. Define the following 1. Amplitude 4. Rarefaction of wave 2. Time period 5. Reflection of wave 3. Frequency 6. Diffraction of wave Q 2. Differentiate between Transverse wave and longitudinal Wave Q 3. Differentiate between mechanical and electromagnetic wave Q 4. What is damped system? What is damped oscillation? Q 5. Define Wave length, Wave speed. Derive V = f Long Section C Question Q 6. What is a ripple tank, and explain its working? Q 7. What are the necessary conditions for a body to execute simple harmonic motion? Q 8. What are the forces acting on simple pendulum? With the help of a diagram, explain SHM in the pendulum. Q 9. With the help of a diagram, explain SHM in the ball and bowl system. CHAPTER # 11 SOUND Short Section B Question Q 1. Define quality, loudness, pitch, acoustic intensity. Q 2. Distinguish between noise and music. Q 3. Define echo, ultrasound, audible frequency range, infrasonic. Long Section C Question Q 4. Discus the electric bell jar experiment. Q 5. Discus the factor effecting speed of sound. CHAPTER # 12  ELECTROMAGNETIC SPECTRUM Short Section B Question Q 1. What is dispersion of light? What is spectrum? Q 2. Give the characteristics of electromagnetic wave. Q 3. Define fluorescents. What do you know about sunbeds? Describe the sterilization Q 4. Give some uses of electromagnetic waves CHAPTER # 13 GEOMETRIC OPTICS Short Section B Question Q 1. Define the following: Reflected ray, Refracted ray, Incident ray, Normal Q 2. Differentiate between reflection and refraction Q 3. Give laws of refraction, Give law of reflection, State Snell's law Q 4. What is total internal reflection and critical angle. Also show them by figure Q 5. Define power of lens. Give its formula and unit Q 6. Differentiate between real and virtual image? Q 7. What do you know about myopia and hypermetropia? Give reason and state how they can be corrected. Q 8. Draw ray diagram for the image formation by a concave mirror. Also state their characteristics Q 9. Draw ray diagram when image form by convex lens also give its characteristics. long Section C Question Q 10. What is magnification glass or simple microscope? Also give its formula for magnification. Draw a ray diagram for image formed by magnifying glass. Q 11. What is compound microscope. Give its construction and working. Also draw its ray diagram and give its formula for magnification. Q 12. What is telescope microscope. Give its construction and working. Also draw its ray diagram and give its formula for magnification. CHAPTER # 14 ELECTRONIC Short Section B Question Q1. Define Electrostatics and Electric charge. Q2. Define Electric field. Give its formula and unit. Define Electric field lines Q3. Define Electrostatic potential. Also give its unit. Q4. What are Factors on which electrostatic? Q5. Define Electric potential energy or electrical energy Q6. What is Capacitance? Write its formula and unit. Q7. What are the Factors on which capacitance depends?  Long Section C Question Q8. what is Electroscope? Describe its construction. Q9. State and explain Coulomb's law. Also derive its formula and give value of its constant. Q10. Define Capacitor. Describe the construction and working of a capacitor Q11. what is Parallel combination of capacitors. Derive the formula for equivalent capacitance of capacitor. Q12. What is series combination of capacitors. Derive the formula for equivalent capacitance of capacitor Unit-15 Current Electricity Short Section B Question Q1. Differentiate between A.C and D.C. Q2. Define Potential difference. Give its formula and unit. Q3. Define Electromotive force. Also write its formula and unit. Q4. State Ohm's law. Also derive V = IR. State and explain Joule's law Q5. Define Electric power, Power dissipation, Q6. What is resistance? What are the Factors affecting the resistance? Q7. what is Moving coil galvanometer? Q8. What is an ammeter? How galvanometer is converted in ammeter? What is Shunt resistor? Q9. What is a voltmeter? How galvanometer is converted in voltmeter? Long Section C Question Q10. Derive an expression of equivalent resistance the resistance connected in Parallel. Q11. Derive an expression of equivalent resistance the resistance connected in series UNIT-16 ELECTROMAGNETISM Short Section B Question Q1. Define Electromagnetism, Electromagnetic force, Electromagnetic Q2. Define Magnetic field and Magnetic field lines Q3. What is Fleming's right hand rule? Q4. Define Magnetic flux density. Also give is unit. Q5. What do you know about Faraday's Law of Induction? Q6. Discus the Factors affecting the magnitude of an induced e.m.f Q7. State and explain Lenz's law Long Section C Question Q8. What is Transformer? Describe its construction and working Q9. Derive a formula for Force acting on a charge moving through a magnetic field. Q10. Derive an expression for Force on current carrying conductor in a magnetic field Q11. Derive an expression for Turning effect on a current carrying coil in a magnetic field. Q12. What is D.C motor. Describe the construction and working of D.C motor. Also draw its figure Q13. Define Mutual induction. Also derive its formula. UNIT-17 INTRODUCTORY ELECTRONICS Short Section B Question Q1. Difference between analogue and digital electronics. Q2. What are Cathode rays? Also list its properties. Q3. Give the Uses of the CRO Q4. What are the uses of Use of Logic Gates Q5. What do you know about the Basic operations of digital electronics? Q6. Describe the Truth table of AND operation using two Q7. Describe the Truth table of AND operation using three input variables Q8. Describe the Truth table of OR gate operation using two input variables: Q9. Describe the Truth table of OR operation using three input variables Q10. Describe the Truth table of NOT gate operation using two input variables Q11. Describe the Truth table of NAND operation using two input variables Q12. Describe the Truth table of NOR operation using two input variables Long Section C Question Q13. What is Cathode-ray Oscilloscope? give its construction and working. Q14. Define an electron gun. Also describe its construction and working. Q15. Explain Deflection of an electron by electric field Unit-18 Information and Communication Technology Short Section B Question Q1. Define Information technology, Telecommunication Q2. What do know about Information and Communication Technology (ICT)? Q3. what are Components of Computer Based Information System (CBIS) Q4. What do you know about System software and Application software. Q5. What is Transducer? Explain the various of it. Q6. What are Primary Memory and Primary Memory? Q7. What is Data Management? Give its uses. Unit-19 Atomic Structure Short Section B Question Q1. What are the Rutherford’s postulates? Q2. Define Nuclear physics. Q3. Define Atomic number, Nucleons, Nucleon Number.  Unit-20 Nuclear Structure Short Section B Question Q1. Define Binding energy, radioactive element, Radioactivity, ionization, penetrating power. Q2. What is Alpha (α)-decay, give its general equation and example Q3. What is beta (β)-decay, give its general equation and example Q4. What do you know about β+ decay? Q5. What do you know about Half-life? Q6. Describe Nuclear Fission with example. Q7. What is Chain reaction? Illustrate it with diagram. Q8. What is Nuclear Fusion? Also explain with example Q9. What are Radiation Hazards? Also give Hazards of particles. Q10. What are the Safety Measures taken for radiations? Numerical Q1. Find the period and frequency of a simple pendulum 1.0 m Simple Harmonic long at a location where g=9.8 ms-2. (Ans: 2.01s, 0.50Hz) Q2. Pendulum clocks with a pendulum measuring out the passing of a second. How long of a pendulum is required to have a period of 1 second? g = 9.8 m/s2. (Ans: 0.25m) Q3. What is the wavelength of a radio wave broadcasted by a radio station with a frequency of 1300 kHz? Where 1K=103, and the speed of the radio-wave is 3x 108 m/s. (Ans: 230.76m) Q4. The waves moving in the pond have a wavelength of 1.6 m, and a frequency of 0.80 Hz. Calculate the speed of these water waves. (Ans: 1.28m/s) Q5. If 50 waves pass through a point in the rope in 10 seconds, what are the frequency and the period of the wave? If its wavelength is 8 cm, calculate the wave speed. Explain the type of wave produced. (Ans: 5Hz, 0.2s, 0.4m/s) Q6. If 80 compressions pass through a point in spring in 20 seconds. Calculate the frequency and the period? If two consecutive compressions are 8 cm apart, calculate the wave speed. (Ans: 4Hz, 0.25s, 0.32m/s) Q7. A simple oscillating pendulum has a length of 80.0 cm. Calculate its a. Period b. Frequency When g 9.8 m/s2 (Ans: 1.794s, 0.557Hz) Q8. What is the frequency of the 193-nm ultraviolet radiation used in laser eye surgery? (1.55x 1015Hz) Q9. The distance from earth to sun is 1.49 x 1011 meters. How long a radio pulse radiated from the sun takes to reach on the earth? (Ans: 496.67 sec) Q10. A concave mirror forms a real image at 25.0 cm from the mirror surface along the principal axis. If the corresponding object is at a 10.0 cm distance, what is the focal length of the mirror? Q11. A thumb pin is positioned at a distance of 15 cm from a convex mirror of a focal length of 20 cm. Determine the position and nature of the image. (Ans:8.57cm) Q12. A convex mirror used for rear-view on an automobile has a radius of curvature of 4.00 m. If a bus is located at 5.00 m from this mirror, find the image's position, nature, and size. (Ans:1.428m) Q13. An object is placed 15 cm away from a converging lens of a focal length of 10 cm. Determine the position, size, and nature of the image formed. (Ans:2cm) Q14. A concave lens of focal length 20 cm forms an image 15 cm from the lens. Determine the power of a lens. Also, how far is the object positioned from the lens? (Ans: 0.05cm) Q15. What is the electric force of repulsion between two electrons at a distance of 1m? (Ans:2.3 x 10-28 N) Q16. Two-point charges q1 = 5C and q2 = 3 C are placed at a distance of 5 cm. What will be the coulomb's force between them? (Ans:54 N) Q17. If 2C charge is placed in the field of 3.42 x 1011N/C, what will be the force on it? (Ans:684 x 103 N) Q18. What is the charge on the capacitor, if a 40 F capacitor has a potential difference of 6 V across it? (Ans:2.4 x 10–4) Q19. The potential difference between two points is 100 V. If an unknown charge is moved between thee points, the amount of work done is 500J. Find the amount of charge. (Ans:5 C) Q20. Find the equivalent capacitance when a 4F, 3 F and 2 F capacitor are connected in series. (0.92 F) Q21. Calculate the p.d of 300mJ of work done on a 150 mC charge? Q22. When the current in a pocket calculator is 0.0002 A, how much charge flows every minute? (12mC) Q23. Calculate the amount of current that an electric heater uses to heat a room in 5 minutes if the charge is 2100 C. (Ans: 7 A) Q24. A potential difference of 90 V exists between two points. The amount of work done when an unknown charge is moved between the points is 450J. Determine the charge amount (Ans: 5 C) Q25. Calculate the potential difference between two points A and B if it takes 9x10 4J of external work to move a charge of +9 HC from A to B. (Ans: 100 V) Q26. The potential difference applied to a portable radio terminal is 6.0 Volts. Determine the resistance of the radio when a current of 20 mA flows through it. (Ans: 300 ) Q27. Resistances of 4 , 6 , and 12  are connected in parallel and then connected to a 6V emf source. Determine the value of 1. The circuit's equivalent resistance. (Ans: 2 2)  2. The total current flowing through the circuit. (Ans: 3 A) 3. The current that flows through each resistance. (Ans: 1.5 A, 1 A, 0.5 A) Q28. A 220 V circuit is used to power two 120 watt and 80 watt light bulbs. Which bulb has the greater resistance and which one has the higher current? (Ans: 80 W bulb, 120 W bulb) Q29. How much voltage will be dropped across a 50 k resistance whose current is 300 A? Q30. Find the current passing through circuit and the voltage across each of the resistors. 100, 400 and 200 Resistors in series. Q31. 100J of heat is produced each second in a 4  resistance, Find the potential difference across the resistor. Q32. A wire carrying 4A current and has length of 15 cm between the poles of a magnet is kept at an angle of 30P to the uniform field of 0.8 T. Find the force acting on the wire? (Ans: 0.24N) Q33. A square loop of wire of side 2.0 cm carries 2.0 A of current. A uniform magnetic field of magnitude 0.7 T makes an angle of 30° with the plane of the loop. What is the magnitude of torque on the loop? (Ans: 4.8x10–4 Nm) Q34. A transformer is needed to convert a mains 220 V supply into a 12 V supply. If there are 2200 turns on the primary coil, then find the number of turns on the secondary coil. (Ans: 120) Q35. A coil surrounding a long solenoid, the current in the solenoid is changing at a rate of 150A/s and the mutual induction of the two coils is 5.5x 10–5H. Determine the emf induced in the surrounding coil? (Ans: 8.25x10–3V).