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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
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2586

Nuclear fission is preffered to nuclear fusion in the generation of energy because

  • A. very high temperature are required for fusion
  • B. the raw materials for fusion are easily obtained
  • C. energy obtained from fusion is relatively small
  • D. the by-products of fusion is very dangerous
View Answer & Discuss (7) WAEC 2008
2587
Control in nuclear reactors is effected with boron rods because rhe rods have the ability to
  • A. absorb electrons
  • B. absorb neutron
  • C. accelerate electrons
  • D. slow down neutrons
View Answer & Discuss (1) WAEC 2008
2588
A radioactive element has a decay constant of 0.077s-1. Calculate its half-life
  • A. 13.0s
  • B. 9.0s
  • C. 5.1s
  • D. 0.5s
View Answer & Discuss WAEC 2008
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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
2589
In which of the following states of matter do the molecules vibrate about their mean positions?
  • A. liquids only
  • B. solids only
  • C. liquids and gasses only
  • D. solids, liquids and gases
View Answer & Discuss WAEC 2009
2590
Which of the following properties of a steel bar can be measured in terms of the dimension of length only?
  • A. weight
  • B. density
  • C. pressure
  • D. volume
View Answer & Discuss (2) WAEC 2009
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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
WAEC and NECO CBT Software for Computers and Laptops - Candidates, Schools, Centres, Resellers - 100% Offline -Download Now
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