Physics 2017 Past Questions | JAMB

Study the following Physics past questions and answers for JAMBWAEC  NECO and Post-JAMB. Get prepared with official past questions and answers for upcoming examinations.

31Which of the following is correct about an electric cell?

  • A. Primary cell produces a large current for a long time
  • B. Secondary cell has a very high internal resistance
  • C. Primary cell has a very low internal resistance
  • D. Secondary cell has a very low internal resistance

32. Which of the following is a semiconductor

  • A. copper
  • B. silicon
  • C. plastic
  • D. Iron

33. Which of the following surfaces will absorbs radiant heat energy heat?

  • A. white
  • B. red
  • C. black
  • D. blue

34. It is known that a neutron exists in a light atomic nucleus
Which of the following also exists in the nucleus?

  • A. An electron
  • B. A β – particle
  • C. β – particle
  • D. proton

35.  The instrument to measure the relative density of liquid is

  • A. thermometer
  • B. hydrometer
  • C. spring balance
  • D. beaker

36. What is the speed of a body vibrating at 50 cyclic per second

  • A. 100 πrads1
  • B. 200 πrads1
  • C. 50 πrads1
  • D. 400 πrads1

37. The action of blotting paper on ink is due to

  • A. diffusion
  • B. osmosis
  • C. capillarity
  • D. surface tension

38. When two mirrors are placed at an angle of 900 to each other, how many images will be formed when an object is placed in front of the mirrors

  • A. 5
  • B. 4
  • C. 3
  • D. 2

39. If silicon is doped with phosphorus, what type of semiconductor material will be formed?

  • A. Zener material
  • B. P-n junction
  • C. n-type
  • D. p-type

40.   Calculate the angle of minimum deviation of a 60o prism of a refractive index [sin-10.75 = 49o]

  • A. 38.00o
  • B. 19.47o
  • C. 16.25o
  • D. 49o
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