Search SchoolNGR

Tuesday, 03 November 2026
Register . Login

Physics Past Questions and Answers

Jamb 2009 Physics Questions

Question 26:
Which of the following is a secondary colour
  • A Blue
  • B Orange
  • C Red
  • D Green
View Answer & Explanation
Question 27:
If negative charges are induced on an electroscope and a positively charged rod is brought near the cap of the electroscope, the leaves will
  • A Close up
  • B Become positively charged
  • C Become negatively charged
  • D Open further
View Answer & Explanation
Question 28:
An electric lamp marked 240v, 60 W is left to operate for an hour. How much energy is generated by the filament?
  • A 3.86 x 10<sup style='font-size: smaller;'>5</sup>J
  • B 3.56 x 10<sup style='font-size: smaller;'>5</sup>J
  • C 1.80 x 10<sup style='font-size: smaller;'>4</sup>J
  • D 2.16 x 10<sup style='font-size: smaller;'>5</sup>J
View Answer & Explanation
Question 29:
A band of 500 rectangular loops of wire of area 20 cm by 20 cm, encloses a region of magnetic field which charges from 1.0T to 0.4T within 5 seconds, calculate the induced e.m.f.
  • A 5.60 v
  • B 24.00 v
  • C 0.24 v
  • D 2.40 v
View Answer & Explanation
Question 30:
Cancerous cells can be destroyed by
  • A Ultraviolet rays
  • B Alpha particules
  • C X - rays
  • D Infrared rays
View Answer & Explanation