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Physics 2002 WAEC Past Questions

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26
The size of the hole of a pin hole camera is increased. The resultant image formed becomes
  • A. sharper
  • B. reduced in size
  • C. enlarged
  • D. blurred
View Answer & Discuss (3) WAEC 2002
27
The refractive index of a medium relative to air is 1.8. Calculate to the nearest degree, the critical angle for the medium
  • A. 68o
  • B. 56o
  • C. 34o
  • D. 18o
View Answer & Discuss WAEC 2002
28
A converging lens of focal length 15cm forms a virtual image at a point 10cm from the lens. Calculate the distance of the object from the lens
  • A. 10.00cm
  • B. 6.00cm
  • C. 5.00cm
  • D. 1.50cm
View Answer & Discuss (5) WAEC 2002
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29

In a compound microscope, the image formed by the objective lens is at a distance of 3.0cm from the eye lens. If the final image is at 25.0cm from the eye lens, calculate the focal length of the eye lens

  • A. 0.3cm
  • B. 2.7cm
  • C. 3.4cm
  • D. 8.3cm
View Answer & Discuss (9) WAEC 2002
30
A pulse of a sound is transmitted from a ship and the reflection from the sea bed is recorded after 0.2s. Calculate the depth of the sea. [Take speed of sound in sea water = 1560ms-1]
  • A. 312.0m
  • B. 156.0m
  • C. 78.0m
  • D. 31.2m
View Answer & Discuss WAEC 2002
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