Physics Nios plus two PQ IV Welcome to your Physics Nios plus two PQ IV Total Questions: 50 Name Mobile No: 1. Which law states that current is directly proportional to voltage? Ampere’s Law Ohm’s Law Faraday’s Law Coulomb’s Law None Hint 2. Fill in the blanks: A forward biased p-n junction offers ___ resistance to the flow of electrons. Zero Low High Medium None Hint 3. Minimum number of non-coplanar forces acting on a body to keep it in equilibrium will be: 3 2 5 4 None Hint 4. SI unit of electric charge is: Coulomb Ampere Ohm Volt None Hint 5. Minimum number of non-coplanar forces acting on a body to keep it in equilibrium will be: 5 3 4 2 None Hint 6. Applications of photocells include: Used in transformers Used in automatic street lights and burglar alarms Used in thermometers Used in refrigerators and ovens None Hint 7. In a metre bridge experiment when the resistance in left gap was 2.5 Ω and in right gap 5.0 Ω, the null point was obtained at a distance 'l' from the zero of scale. The value of l is: 44.3 cm 66.3 cm 33.3 cm 22.3 cm None Hint 8. What is the dimensional formula of pressure? [M L T⁻²] [M L² T⁻²] [M⁰ L⁰ T⁰] [M L⁻¹ T⁻²] None Hint 9. Which of the following laws is used to determine the magnetic field around a current-carrying conductor? Lenz’s Law Faraday’s Law Ampere’s Circuital Law Ohm’s Law None Hint 10. In which of the following situations work is done against gravity of earth? A car moves on a horizontal level road. A person tries to lift a heavy load but fails to do so. A monkey climbs up a tree. A person lifts a load to a certain height in an earth’s natural satellite. None Hint 11. Loudness and Intensity Loudness is perception; intensity is measurable Both are physical quantities Loudness is measurable, intensity is not Loudness is measured in W/m² None Hint 12. A 100 W bulb is connected to a 220 V supply. The current flowing through the bulb is: 11/5 A 10/11 A 11/10 A 5/11 A None Hint 13. Which of the following correctly describes how electric and magnetic fields affect a moving charge? Electric field cannot change velocity Magnetic field works only on stationary charge Electric field affects parallel to field; magnetic field affects perpendicular Both exert force in the direction of motion None Hint 14. A particle having charge –1 μC is placed at a point where the electric potential is 100 V. The electric potential energy of the particle is: 10⁴ J 10⁻⁵ J 10⁻⁴ J –10⁻⁴ J None Hint 15. The resistance of a conductor depends on Temperature, density, time, and pressure Mass, volume, pressure, and length Length, area, material, and temperature Length, height, gravity, and energy None Hint 16. Fill in the blanks: A photodiode is always connected in ___ biasing. Reverse Both Forward Zero None Hint 17. A body is to be kept in equilibrium by some forces. The minimum number of coplanar forces required for this purpose is: 2 3 4 5 None Hint 18. Fill in the blanks: In nuclear reactions ___ is converted into energy. Work Force Mass Charge None Hint 19. A straight power line laid along east-west direction carries a current of 10 A. The earth’s magnetic field at the place is 10⁻⁴ T. Force per metre experienced by the line wire will be: 10⁻⁴ N/m 10⁻³ N/m 10⁻⁵ N/m 10⁻² N/m None Hint 20. Apparent breach of the law of conservation of energy in beta-decay reactions led to the discovery of: Proton Electron Neutrino Neutron None Hint 21. The law of conservation of energy is applicable to: nuclear systems only every system of the universe mechanical systems only chemical systems only None Hint 22. A body of mass 2 kg moves with a constant velocity v = 5 m/s, under a constant force of 3 N. The power loss due to frictional force is: Zero 30 W 15 W -15 W None Hint 23. The electrostatic force between two point charges kept in air at a distance ‘d’ is F₁ and F₂ at the same distance in a medium of dielectric constant K. The ratio F₁ : F₂ is equal to: K : 1 1 : K 1 : K² K² : 1 None Hint 24. A 100 W bulb is connected to a 220 V supply. The current flowing through the bulb is: 10/11 A 5/11 A 11/5 A 11/10 A None Hint 25. A resistance of 5 Ω is connected in the left gap and that of 15 Ω in the right gap of a meter bridge. The position of the null point on the bridge wire from its left end will be: 75 cm 15 cm 25 cm 50 cm None Hint 26. In a hydraulic lift, a 50 kg mass is on a small piston of 0.01 m². What is the weight lifted by a large piston of 10 m² area? 50 N 5000 N 500 N 50000 N None Hint 27. Which of the following statements about diodes is correct? (i)A NOT gate uses two p-n junctions.(ii) When a zener diode is not working on its optimum voltage condition the load draws less power than the power dissipated in the diode. True, False False, False False, True True, True None Hint 28. A particle is projected at an angle of 60° to the horizontal with a certain kinetic energy E. Its kinetic energy at the highest point of its path will be: E/3 E/4 E E/2 None Hint 29. Are household devices connected in series or parallel? Why? Parallel, so each gets equal voltage and works independently Series, because voltage divides equally Parallel, to reduce resistance only Series, because it’s cheaper None Hint 30. Complete the sentences: A system which exhibits thermal, mechanical and chemical equilibrium is said to be in ______equilibrium: exterior thermodynamic surroundings universal None Hint 31. Work done in displacing a charge q on an equipotential surface through a distance r will be: 4πε₀rq Zero q² / 4πε₀r² q / 4πε₀r None Hint 32. In a metre bridge experiment when the resistance in left gap was 2.5 Ω and in right gap 5.0 Ω, the null point was obtained at a distance 'l' from the zero of scale. The value of l is: 22.3 cm 66.3 cm 44.3 cm 33.3 cm None Hint 33. Fill in the blanks: Efficiency of a heat engine does not depend on the nature of the __. Pressure Temperature Working substance Fuel None Hint 34. You are given equal number of nuclei of two radioactive elements A and B. The half life of A is 20 minutes and that of B is 40 minutes. After 80 minutes the ratio of number of nuclei in A and B will be: 1 : 4 1 : 1 2 : 1 4 : 1 None Hint 35. When a glass-rod is rubbed with a piece of silk it acquires a charge of +96 µC. The number of electrons transferred from the glass-rod to the silk piece is: 1.6 × 10¹⁹ 6.25 × 10¹⁸ 9 × 10⁹ 6 × 10¹⁴ None Hint 36. Complete the sentences: The region of space outside the boundary of a system constitutes its: thermodynamic exterior surroundings universal None Hint 37. The maximum number of electrons present in the outermost orbit of any atom is: 32 2 infinite 8 None Hint 38. A narrow parallel beam of white light is incident on a concave lens. Which of the following colour light diverges away at the greatest angle from the nearest point? Violet Green Red Blue None Hint 39. Give in brief the principle of working of Parachute. Air resistance Buoyant force Surface tension Centripetal force None Hint 40. Through wave motion: only particles are transmitted neither energy nor particles are transmitted only energy is transmitted energy and particles both are transmitted None Hint 41. You are given equal number of nuclei of two radioactive elements A and B. The half-life of A is 20 minutes and that of B is 40 minutes. After 80 minutes the ratio of number of nuclei in A and B will be: 1:3 1:2 1:1 1:4 None Hint 42. The phenomenon responsible for the formation of rainbow is: interference diffraction dispersion polarization None Hint 43. A straight power line laid along east-west direction carries a current of 10 A. The earth’s magnetic field at the place is 10⁻⁴ T. Force per metre experienced by the line wire will be: 10⁻² Nm⁻¹ 10⁻⁵ Nm⁻¹ 10⁻⁴ Nm⁻¹ 10⁻³ Nm⁻¹ None Hint 44. Which of the following is the correct symbol for an n-p-n transistor? No arrow shown Emitter arrow inward, base in middle, collector up Arrow in base terminal Emitter arrow outward, base in middle, collector up None Hint 45. Pitch and Frequency Pitch is perception; frequency is measurable Pitch is measured in Hz Both are the same Pitch is how loud a sound is; frequency is pitch None Hint 46. Fill in the blanks: Fusion is also called a ___ reaction. Nuclear fusion Fission Oxidation Combustion None Hint 47. Two charges q₁ and q₂ kept 'd' distance apart, repel each other with a force F. The force between charges 2q₁ and 2q₂ kept '2d' distance apart will be: F/2 2F F F/4 None Hint 48. A body of mass 2 kg moves with a constant velocity v = 5 m/s, under a constant force of 3 N. The power loss due to frictional force is: -15 W Zero 15 W 30 W None Hint 49. Interference is a phenomenon exhibited by: waves as well as particles particles only waves only neither waves nor particles None Hint 50. The number of electrons that constitute –1 C of charge is: 1.6 × 10¹⁹ 6.4 × 10²⁷ 9.0 × 10¹⁸ 6.25 × 10¹⁸ None Hint Time's up Share: admin Previous post Physics Nios plus two II July 24, 2025 Next post History Nios Plus Two PQ VI July 30, 2025
