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Physics 2003 NECO Past Questions

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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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26
The distance between two successive crests of a water wave is 0.5m. If a particle on the surface of the water wave makes two complete vertical oscillations in 1s, calculate the speed of the wave.
  • A. 0.25ms-1
  • B. 0.50ms-1
  • C. 1.00ms-1
  • D. 2.00ms-1
  • E. 4.00ms-1
View Answer & Discuss (5) NECO 2003
27

In 90 seconds, the mass of a radioactive element reduces to \(\frac{1}{16}\) of its original value. Determine the half- life of the element.

  • A. 15.0s
  • B. 18.0s
  • C. 22.5s
  • D. 30.0s
  • E. 45.0s
View Answer & Discuss (3) NECO 2003
28
Which of the following statements about the concept of solid friction is NOT true?
  • A. It always acts in the direction of motion
  • B. It causes wear and tear in car tyres
  • C. It depends on the nature of the surfaces in contact
  • D. It is independent of the area of the surfaces in contact.
  • E. It reduces the efficiency of the machine
View Answer & Discuss (1) NECO 2003
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29
The space surrounding a magnet in which the magnetic force is exerted is
  • A. magnetic field
  • B. magnetic flux
  • C. magnetic point
  • D. magnetic pole
  • E. magnetic strength
View Answer & Discuss NECO 2003
30
Which of the following scientists postulated that moving particles exhibit wave properties?
  • A. Ernest Rutherford
  • B. Erwin Schroedinger
  • C. Frank Hertz
  • D. Louis de Broglie
  • E. Werner Heisenberg.
View Answer & Discuss NECO 2003
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