Physics II - For Class X (Science) - Guess Paper 2024 - By Sir Sajjad Akbar Chandio

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Class X (Science)
Physics II
Guess paper 2024

By Sir Sajjad Akber Chandio
Q.1: Cases optical instrument chapter.
Q.2: Write down different between  the following?

1. Longitudinal Waves and Transversal Waves
2. Sound and Noise
3. Mechanical Waves and Electromagnetic Waves
4. Analogue and Digital Electronics
5. A.C and D.C

Q.3: Define Simple Harmonic Motion and write its character?
Q.4: Write down uses any one of following?

1. Microscopes/Telescopes
2. Spherical Mirror
3. Ultrasound
4. Circuit Components

Q.5: State the followings Laws:

1. Law of Reflection of Light
2. Law of refraction of Light
3. Ohm's Law + limitation
4. Joules Law
5. Lenz’s Law

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. Half Life of Elements
10. Volt
11. Electromotive Force
12. Frequency
13. Time Period

Q.7: Write down effect of electric shock on human body
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, {rojector and Camera 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: Write down working C.R.O with the help of Diagram also write down its uses. Q.15: Write down use of Radio Isotopes in Medicine, Industry and Agriculture?
Q.16: Write down Precaution against Radiation Hazard.
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?
Q.19: Define Ammeter, Voltmeter, Galvanometer, Conversion Ammeter to Galvanometer and conversion Voltmeter to galvanometer?
Q.20: Explain the construction and working D.C motor?
Q.21: Write down application of Transformer and Conductomerty?
Q.22: Describe the magnetic field produced by current carrying conductor.
Q.23. Write down character of following:

1. Alpha
2. Gamma
3. Beta
4. C.R.T

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 15cm 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: If there are 96 grams of radioactive elements Neptunium -240 present, how much Np-240 will remain after 6 hours? (Neptunium-240 has a half –life of 1 hour).
Q.13: A sample of Ac-225 originally contained 8 x 10 24 nuclei after 960 hour. How much of the original sample remains un-decayed. The half-life of the isotopes is ten days.
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.