Search SchoolNGR

Friday, 31 July 2026
Register . Login

Physics Past Questions and Answers

Jamb 1993 Physics Questions

Question 41:
In the fig above,A lever of length 200m is used to lift a load of mass 180kg. The pivot at P is 20m from the load. what minimum force F must be applied at the end of the lever [g = 10ms-2]
  • A 9N
  • B 18N
  • C 20N
  • D 200N
View Answer & Explanation
Question 42:
Two mirrors M1 and M2 are inclined at right angles as shown above calculate the angle of reflection of the ray of light at M2
  • A \( 30^{\circ} \)
  • B \( 45^{\circ} \)
  • C \( 60^{\circ} \)
  • D \( 90^{\circ} \)
View Answer & Explanation
Question 43:
The current I in the fig above is
  • A 4.00A
  • B 1.30A
  • C 0.80A
  • D 0.75A
View Answer & Explanation