Physics II - For Class X (Science) - Guess Paper 2025 - By Sir Sajjad Akbar Chandio

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Class X (Science)
Physics II
Guess paper 2025

By Sir Sajjad Akber Chandio
Q.1: Describe the magnetic field produced by current carrying conductor.
Q.2: Write down different between the following?

1. Longitudinal Waves and Transversal Waves
2. Sound, Musical sound and Noise
3. A.C and D.C
4. Mechanical Waves and Electromagnetic Waves
5. Microscopes and telescopes
6. Real image and virtual image
7. Fission and fusion reaction
8. AND NOT Nor

Q.3: Write down application of X-rays and Gamma Rays.
Q.4: Write down uses any one of following?

1. Microscopes/Telescopes
2. Spherical Mirror
3. Ultrasound, Lidar and Sonar

Q.5: State the followings Laws:

1. Law of Reflection of Light
2. Law of refraction of Light
3. Joules Law + derivation
4. Coulombs Law with derivation

Q.6: Define followings term?

1. Damp oscillation
2. Focal Length
3. Rainbow
4. Dispersion of light
5. Power of lens
6. Refractive Index
7. Optical Fiber
8. Chain Reaction
9. Volt
10. Electromotive Force
11. Frequency
12. Time Period
13. Wavelength and derive formula of wavelength
14. Natural radioactivity
15. Background radiations

Q.7: What are the components of information technology? Clearly indicate the function of each component
Q.8: Explain the method of charge Formation?
Q.9: Explain the electric Bell Jar with the help of diagram?
Q.10: Explain the construction and working of Compound Microscopes, Telescope, {Projector, Compound microscopes and telescopes with the help of ray diagram?
Q.11: Compare real image vs virtual image Derive the Mirror equation 1/f = 1/p + 1/q with the help of diagram?
Q.12: Explain the Water wave (Ripple Tank) with the help of diagram?
Q.13: Compare Regular and Irregular Reflection of light also write down importance of irregular reflection?
Q.14: Explain defect of Human eye how to correction these defect with help of diagram
Q.15: Explain Geiger Marsden experiment with the help of diagram
Q.16: Define Ultrasound and explain applications of Ultrasound in Medicine and industry.
Q.17: Explain the construction and working of Electroscope with the help of Diagram.
Q.18: Define Capacitors and write down its uses Derive the formula Parallel combination and Series Combination with its merit and demerit with derivation?
Q.19: Justify:

1. X-rays are used to detect cracks in metal. Explain?
2. Explain briefly the transmission of radio waves through space.
3. Why concave mirror use in automobile

Q.20: Explain the construction working A.C and D.C motor?
Q.21: Prove the following by Truth table:

1. Y = A.B.C
2. Y = A+B+C

NUMERICALS
Q.1: Find the period and frequency of a simple pendulum 1.0 m long at a location where g = 9.8 m/s²
Q.2: Calculate the speed of sound in air at 30°C? Give that speed of sound at 0°C is 331 m/s.
Q.3: Ruby laser emits the beam of red light having a wavelength of 694.3 nm. Calculate its frequency.
Q.4: The refractive index of the diamond is 2.42. What is the speed of light in a diamond?
Q.5: A concave lens of focal length 20 cm form an image 15 cm from the lens. Determine the power of lens. Also, how far is the object positioned from the lens?
Q.6: 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.
Q.7: Calculate the electric field intensity if 9 µN force acting on 3 µc charge
Q.8: Find the net capacitance of four capacitors. When capacitance of each capacitor is 1 uF and connected parallel.
Q.9: 100 J of heat is produced each second in a 4 resistance. Find the potential difference across the resistor.
Q.10: Calculate the amount of current that an electric heater uses to heat a room in 5 minutes if the charge is 2100 C.
Q.11: 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?
Q.12: The potential differences applied to a portable radio terminal is 6.0 volts. Determine the resistance of the radio when a current of 20mA flows through it.
Q.13: A wire carrying 4A current and has length of 15cm between the poles of a magnets is kept at angles of 30 to uniform magnetic field of 0.8T.find the force acting on the wire?
Q.14: 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.
Q.15: Calculate the coulombs force between two protons 10 cm a part from each other? Charge on proton is 1.69 x 10^-19 C and K = 9.0 x 10⁹ N-m²/C^-19
Q.16: Find the image distance for an object placed 20 cm in front of a convex lens with focal length 17 cm.
Q.17: What is frequency of green light with a wavelength of 5.5 x 10⁷ m?
Q.18: A boy clapped his hands near a wall heard the echo after 1.6s. What is the distance of the wall from the boy if the speed of the sound (v) is taken as 340 m/s?
Q.19: Distances in space are often measured in unit of light year, the distance light travel in one year. Find the distance in km in a light year.
Q.20: What is the frequency of 193 micro m ultraviolet radiation used in laser eye surgery?
Q.21: Find the period and frequency of a simple pendulum 1.0 m long at a location where g = 9.8 m/s²
Q.22: A simple oscillating pendulum has a length of 80cm calculate Period and Frequency when g= 9.8 m/s²