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Class X (Science)
Physics II
Guess paper 2024
By Sir Sajjad Akber ChandioQ.1: Cases optical instrument chapter.
Q.2: Write down different between the following?
- Longitudinal Waves and Transversal Waves
- Sound and Noise
- Mechanical Waves and Electromagnetic Waves
- Analogue and Digital Electronics
- A.C and D.C
Q.3: Define Simple Harmonic Motion and write its character?
Q.4: Write down uses any one of following?
- Microscopes/Telescopes
- Spherical Mirror
- Ultrasound
- Circuit Components
Q.5: State the followings Laws:
- Law of Reflection of Light
- Law of refraction of Light
- Ohm's Law + limitation
- Joules Law
- Lenz’s Law
Q.6: Define followings term?
- Damp oscillation
- Focal Length
- Rainbow
- Dispersion of light
- Power of lens
- Refractive Index
- Optical Fiber
- Chain Reaction
- Half Life of Elements
- Volt
- Electromotive Force
- Frequency
- 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:
- Alpha
- Gamma
- Beta
- 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.
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