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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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1016
Which of the following operations does not represent an action of a force field?
  • A. falling of a mango fruit from the tree
  • B. picking of nails using a bar magnet
  • C. repulsion of two like charges
  • D. pushing of a wheel-barrow on a level gound
View Answer & Discuss WAEC 2007
1017
A bulb marked 240V, 40W is used for 30 minutes. Calculate the heat generated
  • A. 320J
  • B. 400J
  • C. 10800J
  • D. 72000J
View Answer & Discuss (3) WAEC 2007
1018
Five 80-W and three 100W are run for 8 hours. If the cost of energy is N5.00 per unit, calculate the cost of running the lamp. [1 unit = 1 kWh]
  • A. N280.00
  • B. N28.00
  • C. N7.20
  • D. N1.44
View Answer & Discuss (3) WAEC 2007
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
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1019
Which of the following electromagnetic wave can be detected by its heating effect?
  • A. ultraviolet radiation
  • B. x-rays
  • C. gamma rays
  • D. infrared radiation
View Answer & Discuss (2) WAEC 2007
1020
If a gas is excited by high voltage to produce a discharge and the light is examined in a spectrometer
  • A. an explosion is observed
  • B. the rainbow colours are seen
  • C. an emission spectrum is observed
  • D. dark lines are observed
View Answer & Discuss (3) WAEC 2007
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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
WAEC and NECO CBT App for Mobile Devices - Candidates, Schools, Centres, Resellers - 100% Offline -Download Now