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Physics 1983 JAMB Past Questions

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21

Ripples on water are similar to light waves in that they both

  • A. have the same wavelength
  • B. are longitudinal
  • C. cannot be reflected
  • D. travel at the same speed
  • E. can be refracted and diffracted
View Answer & Discuss (6) JAMB 1983
22
A piece of wood is floating on water. The forces acting on the wood are
  • A. upthrust and reaction
  • B. weight and reaction
  • C. weight and upthrust
  • D. upthrust and viscousity
  • E. weight and viscousity
View Answer & Discuss (3) JAMB 1983
23

Of the following derived units, the one that is not a unit of power is

  • A. joule/second
  • B. ampere volt
  • C. ampere2volt
  • D. volts2/ohm
View Answer & Discuss (15) JAMB 1983
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24
a force of 16N applied 4.0kg block that is at rest on a smooth, horizontal surface. What is the velocity of the block at t = 5 seconds?
  • A. 4ms-1
  • B. 10ms-1
  • C. 20ms-1
  • D. 50ms-1
  • E. 80ms-1
View Answer & Discuss (3) JAMB 1983
25

1,000 identical drops of oil of density 500kgm-3 have a total mass of 5 x 10-4kg. One of the drops forms a thin film of area 0.5m2 on water. The thickness of the film is

  • A. 2 x 10-8m
  • B. 2 x 10-9m
  • C. 2 x 10-7m
  • D. 3 x 10-9m
  • E. 2.8 x 10-8m
View Answer & Discuss (4) JAMB 1983
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