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Physics 1993 WAEC Past Questions

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16
Longitudinal waves cannot be
  • A. diffracted
  • B. retracted
  • C. polarized
  • D. reflected
  • E. superposed
View Answer & Discuss WAEC 1993
17
An image which cannot be formed on a screen is said to be
  • A. inverted
  • B. real
  • C. virtual
  • D. erect
  • E. blurred
View Answer & Discuss (1) WAEC 1993
18
The images formed by a diverging lens are always
  • A. diminished, virtual and inverted
  • B. diminished inverted and real
  • C. diminished, virtual and erect
  • D. magnified, virtual and erect
  • E. magnified, real and inverted.
View Answer & Discuss (1) WAEC 1993
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19
In the normal use of a simple microscope, a person sees an
  • A. inverted, virtual and magnified image
  • B. erect, virtual and magnified image
  • C. erect, real and magnified image
  • D. inverted, real and magnified image
  • E. inverted and real image the same size as the object.
View Answer & Discuss WAEC 1993
20
A lens of focal length 15.0 cm forms an upright image four times the size of an object. Calculate the distance of the image from the lens
  • A. 11.3cm
  • B. 18.8 cm
  • C. 37.5cm
  • D. 45.0cm
  • E. 75.0cm
View Answer & Discuss (11) WAEC 1993
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