2015 JAMB PHYSICS PAST QUESTIONS AND ANSWERS

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2015 JAMB PHYSICS PAST QUESTIONS AND ANSWERS

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Category: JAMB Physics 2015

1. A piece of rubber 10cm long stretches 6mm when a load of 100N is hung from it. What is the strain?

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Category: JAMB Physics 2015

2. The diagram above shows the lens arrangement in which optical instrument?

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3. What is the total resistance in the circuit shown in the diagram?

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4. A 6kg body rests on an inclined plane. The angle of inclination, $\theta$, is:

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5. The speed of light in air is $3.0 \times 10^8 \text{ ms}^{-1}$. In glass (refractive index 1.65)?

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Category: JAMB Physics 2015

6. Longitudinal waves do not exhibit which of these phenomena?

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Category: JAMB Physics 2015

7. Which device converts sound energy into electrical energy?

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8. What is an essential property of a good calorimeter?

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9. Which of the following is most strongly deflected by a magnetic field?

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10. The water surface at the glass-water interface is not horizontal due to?

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11. What does a dynamo primarily do?

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12. A particle is injected into an electric field and follows a curved path. It is most likely?

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13. In which diagram does the tube length equal one wavelength?

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14. Why is a calibrated potentiometer used to measure e.m.f. of a cell?

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15. Which of these is a vector quantity?

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16. The photocell operates on which principle?

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Category: JAMB Physics 2015

17. An atom becomes what after losing or gaining a charge?

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Category: JAMB Physics 2015

18. Which wave property measures sea depth?

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Category: JAMB Physics 2015

19. What does a nuclear fusion process produce?

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Category: JAMB Physics 2015

20. Which kettle cools down faster: soot-covered or polished?

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Category: JAMB Physics 2015

21. What condition results in a total eclipse of the sun?

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22. Which color pair provides the widest spectrum separation?

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Category: JAMB Physics 2015

23. What is in phase for a body in simple harmonic motion?

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Category: JAMB Physics 2015

24. Where should a force of 2N be placed to balance a uniform meter rule pivoted at 30 cm?

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25. What is the relative density of a liquid where a solid weighs 10N in air and 7N when immersed?

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Category: JAMB Physics 2015

26. What content does a maximum and minimum thermometer contain?

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27. What energy production process occurs in the sun?

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28. What particle is responsible for nuclear fission in reactors?

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29. What is the uncertainty in momentum for a particle with position uncertainty of $5×10^{-10}$ m?

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30. What is the volume change when 450 kg of ice melts completely?

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31. What happens to conductivity when impurities are added to a semiconductor?

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Category: JAMB Physics 2015

32. What is the term for free electrons leaving a hot metal’s surface?

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Category: JAMB Physics 2015

33. What setup ensures a pure light spectrum is produced?

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34. Why do petrol tankers have chains attached?

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35. What is a perfect emitter or absorber of radiant energy called?

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Category: JAMB Physics 2015

36. What is the effective e.m.f. of six identical cells, each of 2V, connected as shown?

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Category: JAMB Physics 2015

37. What is the power of a pump lifting 5000kg of water through 60m in 50 minutes?

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Category: JAMB Physics 2015

38. What is the frequency of a wave with a 15cm wavelength and $300\text{ ms}^{-1}$ velocity?

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Category: JAMB Physics 2015

39. How much energy is generated by a 240V, 60W electric lamp in one hour?

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Category: JAMB Physics 2015

40. What part of the eye corresponds to the film in a camera?

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