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Physics 1998 JAMB Past Questions

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26
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
27

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
28
An object is placed in front of two plane mirrors inclined at an angle of 0o. If the total number of images formed is 7, Find the value of \(\theta\)
  • A. 30o
  • B. 45o
  • C. 51o
  • D. 90o
View Answer & Discuss (10) JAMB 1998
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29

The most suitable type of mirror used for the construction of the search light is the?

  • A. concave mirror
  • B. convex mirror
  • C. spherical mirror
  • D. parabolic mirror
View Answer & Discuss (8) JAMB 1998
30
The displacement d produced in a glass block of thickness t and refractive index n when an object is viewed through it is
  • A. t – n
  • B. t (1 + 1/n)
  • C. t (1-1/n)
  • D. t (1/n - 1)
View Answer & Discuss (1) JAMB 1998
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