12th Class 2nd Year Physics Guess Paper 2024 Punjab Board

Students if you are looking for the 12th Class 2nd Year Physics Guess Paper 2024 Punjab Board if yes? then you visit the right place where you can easily find the Physics most important short questions and long questions without answers but your duty to find answers from your 12th class Physics book.

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2nd Year Physics Chapter Wise Notes

• Chapter 1 Electromagnetism
• Chapter 2 Electromagnetic Induction
• Chapter 3 Alternating Current
• Chapter 4 Physics of Solids
• Chapter 5 Electronics
• Chapter 6 Dawn of Modern Physics
• Chapter 7 Atomic Spectra
• Chapter 8 Nuclear Physics

Many Students also searching for the 12th Class Physics Chapter Wise Notes but unfortunately, here you will see all chapters of Physics important short as well as long questions but chapter wise notes we will upload in the coming days.

Students these guess papers of Physics class 12 for Punjab boards:

• 2nd Year Physics Guess Paper 2024 Lahore Board
• 2nd Year Physics Guess Paper 2024 Gujranwala Board
• 2nd Year Physics Guess Paper 2024 Bahawalpur Board
• 2nd Year Physics Guess Paper 2024 D.G.Khan Board
• 2nd Year Physics Guess Paper 2024 Faisalabad Board
• 2nd Year Physics Guess Paper 2024 Multan Board
• 2nd Year Physics Guess Paper 2024 Rawalpindi Board
• 2nd Year Physics Guess Paper 2024 Sargodha Board

2nd Year Physics Guess Paper 2024

Class 12 Physics Guess Paper 2024 Punjab Board

2nd year physics important short questions

• Give similarities and differences between Coulomb and Gravitational forces.
• Summarize the properties of electric field lines.
• Do electrons tend to go to regions of high potential or of low potential?
• Electric lines of force never cross. Why?
• What is the function of the grid in a cathode ray oscilloscope?
• What should be the orientation of the current-carrying coil in a magnetic field so that the torque maximum acting upon the coil?
• How can you use a magnetic field to separate isotopes of chemical elements?
• Why the resistance of an ammeter should be very low?
• Why are heavy nuclei unstable?
• What is the radioactive tracer? Describe one application each in medicine.
• How can radioactivity help in the treatment of cancer?
• What is meant by absorber dose, also write down the unit of absorber dose.
• Explain why the terminal potential difference of a battery decreases when the current drawn from it is increased.
• What is Wheatstone Bridge? How can it be used to determine an unknown resistance?
• What is a potentiometer, and how can it be used to measure the EMF of a battery?
• How the reception of a particular radio station is selected on your radio set?
• What is meant by A.M. and F.M.?
• Write down the properties of the parallel resonance circuit.
• Distinguish between intrinsic and extrinsic semiconductors.
• What information is obtained from the area of the hysteresis loop?
• Explain energy band theory.
• Draw a diagram, write the equation, and give the truth table of the exclusive OR-gate.
• What is meant by op. amp, as a comparator?
• What is the principle of the virtual ground? Apply it to find the gain of an inverting amplifier.
• Differentiate between mutual induction and mutual inductance.
• When an electric motor, such as an electric drill, is being used, does it also act as a generator? If so what is the consequence of this?
• Can an electric motor be used to drive an electric generator with the output from the generator being used to operate the motor?
• Describe briefly black body radiations.
• Find the mass of a moving object with a speed of 0.8 c.
• Does the dilation mean that time really passes more slowly in the moving system or that it only seems to pass more slowly?
• Is it possible to create a single electron from energy? Explain.
• How hydrogen spectrum is obtained?
• Can X-rays be reflected, refracted, diffracted, and polarized just like any other waves? Explain.
• What is meant by electric polarization?
• Prove that electric intensity inside a hollow charged sphere is zero.
• Electric lines of force never cross each other, why?
• How can you identify which plate of the capacitor is positively charged? Explain it.
• Write down any four uses of CRO.
• What is Lorentz force? Write down its formula.
• Why is the picture on the screen distorted when a magnet is brought near its screen?
• How a galvanometer can be made sensitive?
• What is the binding energy?
• Write down the name element that has the highest value
• Heavy nuclei are unstable Why?
• What do you mean by dead time in Geiger-Muller Counter
• What factors make a fusion reaction difficult to achieve?
• Write down four sources of current.
• Do bends in a wire affect its electrical resistance? Explain.
• Is the filament resistance lower or higher in a 500 w, 220-volt bulb than in a 100 w, 220-volt bulb?
• Define the terms peak value and peak-to-peak value.
• Discuss two uses of three-phase A.C. supply.
• How the reception of a particular radio station is selected on your radio set?
• Explain ductile substances and brittle substances.
• Can a step-up transformer increase the power level? Explain.
• How would you position a flat loop of a wire in a changing magnetic field, so that there is no EMF induced in the loop?
• Write down the factors upon which the mutual inductance depends.
• Distinguish between A.C. generator and transformer.
• Will higher-frequency light eject a greater number of electrons than low-frequency light?
• When does light behave as a wave?
• When behave as a particle?
• State Stefen’s Boltzman
• Stefen’s constant?
• Also, write the value of
• Find the shortest wavelength of radiation in the Balmer series
• What do we mean when we say that the atom is excited?
• What is meant by hysteresis loss?
• Show that units of modulus of elasticity and stress are the same.
• Why charge carriers are not present in the depletion region
• ball is the principle of the virtual ground?
• Calculate the gain of a non-inverting amplifier. When R1 = = infinity and R2 = zero.
• Four unmarked wires emerge from a transformer.
• What steps would you take to determine the turn ratio?
• Write down two methods used for the production of induced emf.
• What is meant by the hack motor effect in the generator?
• Which has lower energy quanta, radio waves or
• Is it possible to create an explanation?
• What is wave-particle duality? Explain.
• x-ra from energy?
• Does the induced EMF always act to decrease the magnetic flux through a circuit? Explain.
• What is meant by absorbed dose?
• Define its S! unit Gray (Gy).
• Write down the names of three different quarks along with the value of charge on each.
• Do electrons tend to go to regions of high potential or of low potential?
• Describe the force or forces on a positive point charge
• when placed between parallel plates with opposite and equal charges.
• Show that 1 volt 1 newton = 1 meter coulomb
• Write down four properties of electric field lines.
• Why the resistance of an ammeter should be very low?
• How can a current loop be used to determine the presence of a magnetic field in a given region of space?
• Write down two uses of CRO
• What is a deadbeat galvanometer?
• If you swallowed an a-source, which would be the more dangerous to you? Explain why?
• What factors make a fusion reaction difficult to achieve?
• Define the terms “mass defect” and “binding energy”
• What are the functions of “moderator” and “control rods” in a nuclear reactor?
• Why does the resistance of a conductor rise with temperature?
• What are ohmic and non-ohmic conductors? Give examples.
• How does Rheostat work as a variable resistor?
• Under which conditions electromagnetic waves are produced from a source? Explain.
• How does doubling the frequency affect the reactance of an inductor and a capacitor?
• Write down the advantages and disadvantages of A.M and F.M.
• Discuss the mechanism of the electrical condition by holes and electrons in a pure semiconductor element.
• Define Young’s and Bulk’s modulus.
• What is meant by para, dia, and ferromagnetic substances? Give examples for each.
• Why is the base current in a transistor very small?
• What is the effect of forward and reverse biasing of a diode on the width of the depletion region?
• Draw the symbol and truth table of the NOR gate.

2nd year physics important Long questions

• Define electric intensity and electric potential. Derive a relation between them.
• A rectangular bar of iron is 2 cm by 2 cm in cross-section and 40 cm long. Calculate its resistance if resistivity is 5.2x1082m.
• Determine the e/m of the electron. How the path of electrons is made visible?
• A circular coil has 15 turns of radius 2 cm each. The plane of the coil lies at 40° to the uniform magnetic field of 0.2 T. If the field is increased by 0.5 T in 0.2 s, find the magnitude of the induced emf.
• What is meant by rectification? Explain half wave and full wave by using a bridge rectifier.
• A 10 mH, 202 coils is connected? power does it dissipate? 240 V and 180 Hz source. How much
• What is a hysteresis loop? Describe the different features of the hysteresis loop for a Ferromagnetic material.
• An electron is accelerated through a potential difference of 50 V. Calculate its de-Broglie wavelength.
• State three postulates of Bohr’s model of the hydrogen atom. And describe mathematically the de-Broglie interpretation of Bohr’s orbits.
• Find the mass defect for tritium, if the atomic mass of tritium is 3.016049u.
• State and explain Gauss’s law, also calculate the electric intensity due to an infinite sheet of charge.
• The resistance of an iron wire at 0°C is 1×1040. What is the resistance at 500°C, if the temperature coefficient of resistance of iron is 5.2×10-3 K1?
• State Ampere’s law and apply it to find a magnetic field due to a current-carrying solenoid.
• A solenoid has 250 turns and its self-inductance is 2 mH. What is the flux through each turn when the current is 2A? What is the induced emf when the current changes at 20 As 1?
• Write a note on transit as an amplifier.
• A circuit has an inductance of H and resistance of π WW2000 2. A 50 Hz A.C. is supplied to it. Calculate the reactance and impedance offered by the circuit.
• Define the photoelectric effect. Give its explanation on the basis of Quantum theory.
• A wire 2.50 m long with and cross-section area of 105 m2 is stretched 1.5 mm by a force of 100 N in the elastic region. Calculate Young’s modulus.
• What is a laser? Write down its properties and also explain laser action in detail.
• Find the mass defect and binding energy of the deuteron nucleus.
• The experimental mass of deuteron is 3.3435 × 10-27 kg.

1st Year Physics Guess Paper 2024 PDF download

Students, here you will not find any 2nd Year Physics Guess Paper PDF Download 2024 Punjab Board File because here we have already shared with you all important short as well as long Physics question notes that will help you in your exams.

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The topic of this post is 2nd Year 12th Class Physics Guess Paper 2024 Punjab Board without any pdf file. We add this post to the 12th Class Guess Papers category where students can easily find the Guess Questions type study solutions and much more that students need to be related to Physics Class 12.