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1261
The physical properties of sound waves can best be described by
  • A. reflection and diffraction
  • B. polarization and reflection
  • C. polarization and diffraction
  • D. polarization and refraction
View Answer & Discuss (7) JAMB 1998
1262
In a closed organ pipe producing a musical note, an antinode will always be produced at
  • A. the closed end
  • B. the open end
  • C. the middle
  • D. all the parts of the pipe
View Answer & Discuss (5) JAMB 1998
1263
A steel wire of length 0.50m is stretched between two fixed points and its fundamental frequency is 200Hz. The speed of the wave in the wire is
  • A. 100ms-1
  • B. 120ms-1
  • C. 200ms-1
  • D. 250ms-1
View Answer & Discuss (1) JAMB 1998
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
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1264
In a resonance tube experiment, if the fundamental frequency of the vibrating air column is 280Hz, the frequency of the third overtone is
  • A. 70Hz
  • B. 840Hz
  • C. 1120Hz
  • D. 1960Hz
View Answer & Discuss (22) JAMB 1998
1265

An object 0 lies at a distance m in front of concave mirror of focal length f. If m < f, then the final image obtained will be

  • A. virtual and diminished
  • B. magnified and erect
  • C. real and inverted
  • D. diminished and erect
View Answer & Discuss (13) JAMB 1998
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