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Physics 1978 JAMB Past Questions

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41

The angular dispersion of a prism depends on

  • A. the index of refraction only
  • B. the angle of incidence as well as the index of refraction
  • C. the angle of incidence only
  • D. the thickness of the prism
  • E. the prism angle
View Answer & Discuss (18) JAMB 1978
42

A string is sustaining a stationary wave when

  • A. the frequency of the wave is not proportional to the wavelength of the wave
  • B. the amplitude of vibration is always zero
  • C. two equal waves are travelling in opposite directions
  • D. the waves are longitudinal
  • E. the frequency is directly proportional to the length of the string
View Answer & Discuss (4) JAMB 1978
43
For the correction of myopic defects in the human eye we require
  • A. a convex lens
  • B. a concave lens
  • C. a combination of concave and convex lenses
  • D. a prism
  • E. a concave mirror
View Answer & Discuss (14) JAMB 1978
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44
Of the following which is different from the other?
  • A. x-rays
  • B. gamma-rays
  • C. cathode rays
  • D. ultra violet rays
  • E. infrared rays
View Answer & Discuss (3) JAMB 1978
45
The net charge on the atom is zero because
  • A. the electrons and the protons that are charged are in the nucleus
  • B. the total charge on the electrons is equal to the total charge on the protons
  • C. the neutrons from a shield around the charged protons
  • D. the number of electrons in an atom is half the number of protons
  • E. A and B above
View Answer & Discuss (16) JAMB 1978
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