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Physics 2017 JAMB Past Questions

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6
Under what conditions are cathode rays produced in a discharge tube?
  • A. High pressure and low voltage
  • B. High pressure and high voltage
  • C. Low pressure and low voltage
  • D. Low pressure and high volatge
View Answer & Discuss JAMB 2017
7
Under which of the following conditions is workdone
  • A. A man supports a heavy food above his head with his hands
  • B. A boy climbs onto a table
  • C. A man pushes unto a table
  • D. A woman holds a pot of water
View Answer & Discuss (9) JAMB 2017
8

Calculate the specific latent heat of vaporization of steam of 1.13 x 106J of heat energy is required to convert 15kg of steam to water.

  • A. 7.53 x 105 Jkg\(^{-1}\)
  • B. 7.53 x 10-2Jkg\(^{-1}\)
  • C. \(7.53 \times 10^{4}\)Jkg\(^{-1}\)
  • D. 7.53 x 10-3Jkg\(^{-1}\)
View Answer & Discuss (4) JAMB 2017
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9

A cell of internal resistance 2Ω supplies current to a 6Ω resistor. The efficiency of the cell is

  • A. 12.0%
  • B. 25.0%
  • C. 33.3%
  • D. 75.0%
View Answer & Discuss (14) JAMB 2017
10
Which of the following statements is NOT correct?
  • A. Molecules of a liquid are stationary
  • B. Brownian motion is an evidence of particle nature of matter
  • C. Matter is made up of molecules
  • D. The molecules of matter are in constant motion
View Answer & Discuss (1) JAMB 2017
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