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Physics 2005 NECO Past Questions

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46

The wave theory of light does not explain photoelectricity because

  • A. light waves carry little energy
  • B. particles cannot be emitted by waves
  • C. the frequency of light waves too high
  • D. there is a threshold wavelength for electron emission
  • E. the wavelength of Light waves is too short.
View Answer & Discuss (4) NECO 2005
47
The most suitable instrument for measuring the diameter of a thin wire is a
  • A. meter rule
  • B. micrometer screw gauge
  • C. pair of dividers
  • D. pair of engineer’s calipers
  • E. venire calipers
View Answer & Discuss NECO 2005
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