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-1-, , SAMPLE BLUE PRINT FOR MIDTERM EXAMINATION, , IV, , 4, , V, , VI, , VII, , 16, , 11, , 19, , 11, , 19, , Capacitance, Current Electricity, Moving Charges And, Magnetism, , 5, , Magnetism And Matter, , 2, , 4, , 6, , Electromagnetic Induction, , 7, , 11, , 7, , Alternating Current, , 6, , 11, , 8, , Electromagnetic Waves, , 1, , 2, , 5, , 9, , --, , --, , 9, , Ray Optics and Optical, instruments, , Total Number of Questions, , 5 Marks, (Numerical, Problem), , 3, , 9, , Electrostatic Potential And, , 5 Marks, (Theory), , III, , 14, , 3 Marks, , 2, , 8, , Electric Fields, , 2 Marks, , II, , Electric Charges And, , 1 Mark, , 1, , Weightage of, marks, , Chapter, Number, , I, , TOPICS, (CHAPTERS), , CLASS : II PUC, , Number of, teaching Hours, , UNIT, , SUBJECT : PHYSICS (33), , 10, , 8, , 8, , 6, , 5, , 60, 105, 10, 16, 24, 30, 25, Note: 105 Marks /60 hours = 1.75 marks/hour., Blue print varies from one question paper to another question paper. This blue print is just a sample., Variation of 1 mark is allowed for a chapter., TOTAL MARKS, , MODEL QUESTION PAPER for MIDTERM EXAM, Time: 3 hours 15 min., , II P.U.C. PHYSICS (33), , Max. Marks: 70, , General instructions:, a) All parts are compulsory., b) Answers without relevant diagram/ figure/circuit wherever necessary will not carry any marks., c) Direct answers to the Numerical problems without detailed solutions will not carry any marks., , PART – A, I. Answer ALL the following questions, 1. State Gauss’s law in electrostatics., , 10 × 1 = 10, , 2., 3., 4., 5., 6., , How does the electric potential vary with distance from a point charge?, Graphically represent the variation of resistivity of a conductor with absolute temperature., Mention the principle on which Metre Bridge works., When will a charged particle moving in a uniform magnetic field experiences maximum force?, Write the expression for magnitude of torque acting on a current carrying coil placed in a uniform magnetic field., 7. Define magnetisation of magnetic material., 8. Name the law used to find the polarity of induced emf in a coil., 9. What is the average power dissipated by a pure inductor over a complete cycle of AC?, 10. Draw the ray diagram for the image formation in simple microscope., I PUC PHYSICS : MODEL PAPERS-2021, , SHREENIVASA M BHAT, Lecturer in PHYSICS, GPUC, KARWAR: 9740541938
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-2-, , PART – B, II. Answer any FIVE of the following questions., , 5 × 2 = 10, , 11. Give two differences between polar and non-polar molecules., 12. Define mobility of free electrons in a conductor and give its SI unit., 13. Mention the two factors on which resistance of conductor depends., 14. Write the expression for magnetic field inside a solenoid and explain the terms., 15. Explain the conversion of galvanometer to a voltmeter with the help of a circuit diagram., 16. State and explain Ampere’s Circuital Law., 17. Mention any two sources of energy loss in a transformer., 18. Give two uses of infra-red waves., , PART – C, III. Answer any FIVE of the following questions., , 5 × 3 = 15, , 19. Write any three properties of electric field lines., 20. Derive the expression for potential energy of a system of two point charges in the absence of external electric field., 21. Write the three limitations of Ohm’s law., 22. State Biot-Savart’s law., 23. Define the terms (i) magnetic dip (ii) declination and (iii) horizontal component of earth’s magnetic field., 24. Write any three applications of eddy currents., 25. Show that current leads the voltage by phase angle /2 in a capacitor when connected to AC., 26. Define critical angle. State the two conditions for total internal reflection., , PART – D, IV. Answer any TWO of the following questions., , 2 × 5 = 10, , 27. Derive an expression for electric field on the equatorial line of an electric dipole., 28. Deduce the expression for the capacitance of a parallel plate capacitor. What happens to its capacitance when air, is replaced by a medium of dielectric constant ‘K’ between the plates?, , 29. Derive the expression for conductivity of a material σ =, , n e2 τ, m, , V. Answer any TWO of the following questions., , ; where the terms have their usual meaning., , 2 × 5 = 10, , 30. Derive an expression for force per unit length between two infinitely long straight parallel current carrying, conducting wires. Hence define “ampere”., 31. What is AC generator? Derive an expression for the instantaneous emf in AC generator., 32. Derive lens maker’s formula., , VI. Answer any THREE of the following questions., , 3 × 5 = 15, , 33. The electrostatic force between two identical ions that are separated by 5.0 Å is 3.7 ×10 –9 N., What is the charge on each ion? How many electrons are missing from each ion?, 34. A 4 μF capacitor is charged by a 100 V supply. It is then disconnected from the supply, and is connected to another, uncharged 2 μF capacitor. How much electrostatic energy of the first capacitor is lost in the form of heat and, electromagnetic radiation?, 35. Three cells of e.m.f. 2.0 V, 1.8 V and 1.5 V are connected in series. Their internal resistances are 0.5 Ω, 0.7 Ω and, 1Ω respectively. If this battery is connected to a parallel combination of two resistors of resistance 8 Ω each,, calculate the (i) total current flowing in the circuit and (ii) the potential difference across the terminals of the cell, of emf 1.5 volt while in use., 36. A straight wire of length π/2 m is bent into a circular shape. O is the center of the circle formed and P is a point on, its axis which is at a distance 3 times the radius from O. A current of 1 A is passed through it., Calculate the magnitude of the magnetic field at the point O and P., 37. A resistor, an inductor and a capacitor are connected in series with a 120V, 100Hz ac source. Voltage leads the, current by 350 in the circuit. If the resistance of the resistor is 10 and the sum of inductive and capacitive, reactances is 17, calculate the self-inductance of the inductor., I PUC PHYSICS : MODEL PAPERS-2021, , SHREENIVASA M BHAT, Lecturer in PHYSICS, GPUC, KARWAR: 9740541938
