(Physics 2023) Model past questions and answers

Hi jambite, I welcome you to poscholars. I understand you need information and resources to help you blast your UTME exams once and for all. You are in the right place. paradventure you have been searching all over google to get access to online past questions and answers for Physics UTME 2023, you are also in the right place. You see there is a saying which goes thus 'the only person you are destined to become is the person you decide to be'. Let this quote sink into your head. You are about to write your UTME and whether you pass well or fail well, it is in your hands you are the one to determine it noone else. Until you understand this, you might continue to fail. I wish you success. Back to the matter, We have compiled model past questions and answers from Physics UTME 2023. All you need to do is look at the question critically and confirm the answers. You can study the 40 (forty) Jamb Physics past questions and answers for 2023 by checking the content below or using the table of content below to navigate to the number of your choice

1. What is the force on a segment of wire that is 0.5m long and has a current of 2A, when placed in a magnetic field of 2T at and angle of $30^0$ to the field? (a) 1.ON (b) 2.0N (c) 0.1N (d) 0.2N The correct answer is: (a) 1.ON 2. The mode of heat transfer that is electromagnetic in nature is _____ (a) Conduction (b) Evaporation (c) Convection (d) Radiation The correct answer is: (d) Radiation 3. The condition for resonance to occur in RLC series circuit is _____ (a) When the angular frequency of the applied voltage is equal to the natural angular frequency of the circuit (b) When the angular frequency of the apply voltage is greater than the natural angular frequency of the circuit (c) When the angular frequency of the applied voltage is less than the natural angular frequency of the circuit (d) When the angular frequency of the applied voltage is zero The correct answer is: (a) When the angular frequency of the applied voltage is equal to the natural angular frequency of the circuit 4. A solid weighs 10.5N in air and 5.5N when immersed in a liquid of density $900kgm^{-3}$. Calculate the volume of the solid. $g = 10m/s^2$ (a) $1.17 \times 10^{-4}m^{3}$ (b) $5.56 \times 10^{-4}m^{3}$ (c) $3.24 \times 10^{-4}m^{3}$ (d) $2.24 \times 10^{-4}m^{3}$ The correct answer is: (b) $5.56 \times 10^{-4}m^{3}$ 5. A uniform metre rule AB balanced on a knife edge 60cm from end B when a load of 33g is kept 10cm away from the end A, what is the weight of the metre rule? (a) 40g (b) 55g (c) 66g (d) 37g The correct answer is: (c) 66g 6. A paricle in a simple harmonic motion while passing through mean position will have (a) Minimum kinetic energy and maximum potential energy (b) Maximum potential energy and minimum kinetic energy (c) Minimum kinetic energy and minimum potential energy (d) Maximum kinetic energy and minimum kinetic energy The correct answer is: (d) Maximum kinetic energy and minimum kinetic energy 7. A pin floats on water due to the phenomenon of? (a) Viscosity in fluid (b) Surface tension (c) Capillary tension (d) Gravitation The correct answer is: (b) Surface tension 8. (i) It converts electrical energy into mechanical energy (ii)It generates electricity (iii)It is based on the principle of electomagnetic induction (iv)It follows Fleming's left hand rule. Which of the statements above is/are true for an electric motor? (a) (i) only (b) (i) and (ii) only (c) (i), (ii) and (iii) only (d) (i) and (iv) only The correct answer is: (d) (i) and (iv) only 9. A thick glass tumbler cracks when hot water is poured into it because of? (a) Anomalous expansion of water (b) Uneven expansion of the glass tumbler (c) Thermal expansion of water (d) Even expansion of the glass tumbler The correct answer is: (b) Uneven expansion of the glass tumbler 10. which of the following is the function of a p.n junction diode of a semiconductor device? (a) It can be used to convert Alternating Current (AC) to direct current (DC) (b) It can be used to convert Direct Current (DC) to Alternating Current (c) It can be used to amplify the electric current in a circuit (d) It can be used to step down the electric current in a circuit The correct answer is: (a) It can be used to convert Alternating Current (AC) to direct current (DC)

11. Which of the following is true of a particle in stable equilibrium? (a) Potential energy is constant (b) Potential energy is maximum (c) Potential energy is minimum (d) Potential energy is zero The correct answer is: (c) Potential energy is minimum 12. Determine the equivalent capacitance of the capacitors shown in the circuit (a) $1.20 \mu$F (b) $6.00 \mu$F (c) $0.55 \mu$F (d) $1.33 \mu$F The correct answer is: (d) $1.33 \mu$F 13. The power factor of a series R.L.C. circuit at resonance is (a) 0 (b) 1 (c) $\pi$ (d) $\frac{\pi}{2}$ The correct answer is: (b) 1 14. In the given circuit, what is the ammeter reading given that the voltages across the capacitor and inductor are 300 volts each (a) 1.2A (b) 2.2A (c) 3.2A (d) 0.2A The correct answer is: (b) 2.2A 15. One of these is not an example of a mechanical wave? (a) Sound waves (b) Water waves (c) Light waves (d) Seismic wave The correct answer is: (c) Light waves 16. Which of the following is a scalar quantity? (a) Electric potential (b) Electric field (c) Angular momentum (d) Linear momentum The correct answer is: (a) Electric potential 17. Given three capacitors each of capitance C. The resultant capacitance of 2C/3 can be obtained by (a) Combining all in parallel (b) All in series (c) Two of them in series and in parallel with the third (d) Two in parallel and third in series with this combination The correct answer is: (d) Two in parallel and third in series with this combination 18. If two plane mirrors are positioned side by side, the number of images formed is 8. At what angle are they positioned? (a) $30^o$ (b) $40^o$ (c) $60^o$ (d) $90^o$ The correct answer is: (b) $40^o$ 19. If the half life of a particle is 4.5 days. How long will it decay $\frac{3}{4}$ of its original mass? (a) 9 days (b) 12 days (c) 15 days (d) 21 days The correct answer is: (a) 9 days 20. A transformer core is laminated to reduce _____ (a) Hysteresis loss (b) Copper loss (c) Eddy current loss (d) Stray and di-electric losses The correct answer is: (c) Eddy current loss

21. A glass rod is charged when rubbed with silk cloth because (a) It transfers negative charge (b) It transfers positive charges (c) It accepts negative charges (d) It accepts in positive changes The correct answer is: (a) It transfers negative charge 22. Addition of trivalent impurity to a semiconductor (a) Increases the number of holes (b) Decreases the number of holes (c) Increases the number of free electron (d) Decreases the number of free electrons The correct answer is: (a) Increases the number of holes 23. A charge of magnitude $1.6 \times 10^{-19}C$ is placed in a uniform electric field of intensity 1,200V/m. Calculate its acceleration if the mass of the charge is $9.1 \times 10^{-31}kg$ (a) $2.11 \times 10^{12}m/s^{2}$ (b) $2.11 \times 10^{14}m/s^{2}$ (c) $6.83 \times 10^{12}m/s^{2}$ (d) $6.83 \times 10^{14}m/s^{2}$ The correct answer is: (b) $2.11 \times 10^{14}m/s^{2}$ 24. The defect of the eye lens which occurs when the ciliary muscles are weak is called _____ (a) Longsightedness (b) Short sightedness (c) Presbyopia (d) Astigmatism The correct answer is: (c) Presbyopia 25. A light of 6.22eV is incident on a cadmium surface. If a stopping voltage of 2.1eV is required to reduce the photocurrent to zero. Calculate the work function of the cadmium in electron volt. (a) 4.07eV (b) 2.15eV (c) 6.22eV (d) 8.37eV The correct answer is: (a) 4.07eV 26. The fundamental frequency of an open organ pipe is the same as that of the second overtone of a closed organ pipe of length 0.2m. What is the length of the open organ pipe? (a) 0.132m (b) 0.160m (c) 0.125m (d) 0.080m The correct answer is: (d) 0.080m 27. What is the maximum possible wavelength in an open organ pipe of length a cm (a) a cm (b) 2a cm (c) 3a cm (d) 4a cm The correct answer is: (b) 2a cm 28. Mercury is used as a thermometric substance because (i) its specific heat is low (ii) does not wet glass (iii) It is opaque (a) i only (b) i and ii only (c) ii and iii only (d) i, ii and iii The correct answer is: (d) i, ii and iii 29. The magnetic field inside a solenoid is _____ (a) Non-uniform (b) Uniform (c) Zero (d) Weak The correct answer is: (b) Uniform 30. A gun with a muzzle velocity of 500m/s shoots a bullet at a bird 50m getPickersArrowSwitcherUtilityClass. To hit the EventTarget, the gun should be aimed [ $take g = 10m/s^{2}$ ] (a) 5cm high above the bird (b) 10cm high above the bird (c) Directly towards (d) 15cm high above the level of the bird The correct answer is: (a) 5cm high above the bird

31. If the distance between two suspended masses 50kg each is quadrupled, the gravitational force of attraction between them is (a) Reduced by four (b) Increased by four (c) Increased by sixteen (d) Reduced by sixteen The correct answer is: (d) Reduced by sixteen 32. In a simple machine, the variation of the efficiency with load is _____ (a) A parabola (b) A straight line (c) A hyperbola (d) Logarithmic The correct answer is: (a) A parabola 33. Binding energy is _____ (a) The amount of energy released when protons change energy level (b) The amount of energy released when electrons change energy levels (c) The amount of energy required to break a nucleus apart into protons and neutrons (d) The amount of energy required to to break a nucleus apart into protons and electrons The correct answer is: (c) The amount of energy required to break a nucleus apart into protons and neutrons 34. If the heat capacity of a 100g of a substance is ${3000JK}^{-1}$ what would be the heat capacity of of 10g of the substance? (a) ${30JK}^{-1}$ (b) ${300JK}^{-1}$ (c) ${30,000JK}^{-1}$ (d) ${3JK}^{-1}$ The correct answer is: (b) ${300JK}^{-1}$ 35. Wooden ladles are commonly used domestically to scoop hot soup because of its (a) Good insulation of electricity (b) Good insulation of heat and electricity (c) Bad conduction of heat and electricity (d) Good insulation of heat The correct answer is: (d) Good insulation of heat 36. Which of these thermometers uses the volume of a fixed mass of liquid as its thermometric properties? (a) Mercury-in-glass thermometer (b) Thermocouple thermometer (c) Constant-volume of gas thermometer (d) Resistance thermometer The correct answer is: (a) Mercury-in-glass thermometer 37. As pressure is increased, (a) The melting point of the ice decreases (b) The melting point of the ice increases (c) The boiling point of the water increases (d) No change is observed in the melting point of ice or the boiling point of water The correct answer is: (a) The melting point of the ice decreases 38. Which of the following statements about the gamma ray is/are true? (i) It carries a negative charge (ii) It can be deflected by both magnetic and electric field (iii) It can be stopped by a sheet of paper (iv) It has zero rest mass and a neutral charge (a) (i) only (b) (i) and (ii) only (c) (ii) and (iv) only (d) (iv) only The correct answer is: (d) (iv) only 39. A cyclist of mass 30KG exerts a force of 250N to move his bicycle. The acceleration produced is $4m/s^{2}$. What is the frictional force between the road and the tires (a) 200N (b) 120N (c) 130N (d) 180N The correct answer is: (c) 130N 40. The temperature of land rises more quickly than that of the sea because the specific heat of the soil is (a) More than that of water (b) Less than that of water (c) Equal to that of water (d) Negligible The correct answer is: (b) Less than that of water Without doubt I believe you are happy with the questions and answers on Jamb Physics 2023 you saw above. We have compiled this to ensure students have access to resources that can help them blast their UTME exams. If you have any comment or you observe any flaw do well to leave a comment in the comment-box below and we will get back to you

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