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Physics 2004 NECO Past Questions

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26
A surface in the path of an advancing wave on which all the particles are in the same state of disturbance is called a
  • A. crest
  • B. cycle
  • C. pulse
  • D. trough
  • E. wave front
View Answer & Discuss NECO 2004
27
Calculate the wavelength of light travelling with a speed of 3 × 108ms-1 and a frequency of 6.2 × 1014Hz.
  • A. 4.8 × 10-8m
  • B. 4.8 × 10-7m
  • C. 4.8 × 10-6m
  • D. 4.8 × 10-5m
  • E. 4.8 × 10-4m
View Answer & Discuss (2) NECO 2004
28
What is the uncertainty in the measurement of time, if the uncertainty in measuring the energy of an electron of mass 10-30 kg is 2.45 × 10-19J? h = 6.6 × 10-34
  • A. 1.35 ×10-15s
  • B. 2.69 × 10-15s
  • C. 4.15 × 10-15s
  • D. 9.05 × 10-15s
  • E. 1.62 × 10-14s
View Answer & Discuss (2) NECO 2004
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29
A body has masses of 0.013kg and 0.012 kg in oil and water respectively. If the relative density of oil is 0.875 calculate the mass of the body.
  • A. 0.02 kg
  • B. 0.03kg
  • C. 0.04kg
  • D. 0.05kg
  • E. 0.06kg
View Answer & Discuss (3) NECO 2004
30
A stone is dropped from the top of a tower of height 11 .25m. Calculate the time it will take to reach the ground. [g = 10ms-2]
  • A. 1.00s
  • B. 1.50s
  • C. 2.25s
  • D. 2.50s
  • E. 3.00s
View Answer & Discuss (2) NECO 2004
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