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Physics 2009 NECO Past Questions

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31
A sound wave from a ship is received 8.4s later. What is the depth of the sea? [Speed of sound in water 1500ms-1]
  • A. 0.179km
  • B. 0.357km
  • C. 3.150km
  • D. 6.300km
  • E. 12.600km
View Answer & Discuss (6) NECO 2009
32
Which of the following statements about a gas is NOT correct?
  • A. It has no definite shape
  • B. It is compressible
  • C. Its molecules are closely packed
  • D. Its molecules gain kinetic energy when heated
  • E. Its molecules move about randomly
View Answer & Discuss NECO 2009
33
A body executing simple harmonic motion has an angular speed of 2π radians. Its period of oscillation is (π 3.14).
  • A. 0.05s
  • B. 1.00s
  • C. 2.00s
  • D. 3.14s
  • E. 6.28s
View Answer & Discuss (4) NECO 2009
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34
Which of the following statements is correct about light and sound waves? Both
  • A. are longitudinal waves
  • B. are transverse waves
  • C. have the same velocity in air
  • D. need a medium for propagation
  • E. transmit energy
View Answer & Discuss NECO 2009
35
Which of the following pairs of musical instruments produce sound due to the vibration of air column?
  • A. Bell and piano
  • B. Guitar and flute
  • C. Trumpet and drum
  • D. Trumpet and flute
  • E. Violin and organ
View Answer & Discuss NECO 2009
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