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Friday, 01 May 2026
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Physics Past Questions and Answers

Jamb Physics Questions

Question 421:
The sign of the change on a charged glass rod may be determined with
  • A A charged electroscope
  • B An uncharged electroscope
  • C A galvanometer
  • D An electrometer
View Answer & Explanation
Question 422:
If the inclination at Ibadan is 7oS, this means that
  • A The angle between the geographic meridian and the magnetic meridian at Ibadan is 7<sup style='font-size: smaller;'>o</sup>
  • B The earth's magnetic intensity at Ibadan makes angle 7<sup style='font-size: smaller;'>o</sup> with the horizontal direction
  • C A magnetic needle will be inclined at 7<sup style='font-size: smaller;'>o</sup> to the vertical at Ibadan
  • D The north pole of a magnetic needle dips downward at Ibadan
View Answer & Explanation
Question 423:
The wavelength of ultraviolet radiation is 400nm. If the speed of light in air is 3 x 108ms-1, then the frequency of the ultraviolet radiation is
  • A 1.3 x 10<sup style='font-size: smaller;'>15</sup>Hz
  • B 7.5 x 10<sup style='font-size: smaller;'>5</sup>Hz
  • C 1.2 x 10<sup style='font-size: smaller;'>11</sup>Hz
  • D 7.5 x 10<sup style='font-size: smaller;'>14</sup>Hz
View Answer & Explanation
Question 424:
Which of the following is most strongly deflected by magnetic field?
  • A \(\gamma\) - rays
  • B X- particle
  • C \(\beta\) - particles
  • D X - rays
View Answer & Explanation
Question 425:
When a box of mass 45kg, is given an initial speed of 5ms-1 it slides along a horizontal floor a distance of 3m before coming to a rest. what is the coefficient of kinetic friction between the box and the floor? (G = 10ms-2)
  • A \( \frac{5}{6} \)
  • B \( \frac{5}{12} \)
  • C \( \frac{1}{3} \)
  • D \( \frac{2}{3} \)
View Answer & Explanation