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Tuesday, 03 November 2026
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Physics Past Questions and Answers

Jamb 2005 Physics Questions

Question 6:
In an ideal wheel an axle system, R stand for the radius of the wheel and r is the radius of the axle. the mechanical advantage is
  • A (R/r)<sup style='font-size: smaller;'>2</sup>
  • B R/R
  • C (r/R)<sup style='font-size: smaller;'>2</sup>
  • D R/r
View Answer & Explanation
Question 7:
An object is projected for the hieght of 80 m above the ground with a velocity of 40ms-1 at the angle of 30° to the horizontal. The time of flight
  • A 8 s
  • B 4 s
  • C 16 s
  • D 10 s
View Answer & Explanation
Question 8:
In an a.c circuit that contains only a capacitor, the voltage lags behind the current by
  • A 180°
  • B 90°
  • C 60°
  • D 30°
View Answer & Explanation
Question 9:
the time it will take a certain radioactive material with a half-life of 50 days to reduce to 1/32of its original number is
  • A 250days
  • B 150days
  • C 300days
  • D 200days
View Answer & Explanation
Question 10:
a proton moving with a speed of 1.0 x 106ms-1 through a magnetic field of 1.0T experiences a magnetic force of magnitude 8.0 x 10-14 N. The angle between the proton''s velocity and the field is
  • A 60°
  • B 90°
  • C 30°
  • D 45°
View Answer & Explanation