Search SchoolNGR

Thursday, 11 June 2026
Register . Login

Physics Past Questions and Answers

Jamb 2002 Physics Questions

Question 36:
an electric cell with nominal voltage E has a resistance of 3Ω connected across it. If the voltage falls to 0.6E, the internal resistance of the cell is
  • A 1Ω
  • B
  • C 3Ω
  • D 4Ω
View Answer & Explanation
Question 37:
Na + X → F + He
23 20 4
11 9 2




What particle is X in the reaction above?
  • A Alpha
  • B Beta
  • C Neurons
  • D Gamma
View Answer & Explanation
Question 38:
Pure silicon can be converted to a p-type by adding a controlled amount of
  • A Trivalent atoms
  • B Tetravalent atoms
  • C Pentavalent atoms
  • D Hexavalent atoms
View Answer & Explanation
Question 39:
The energy associated with the photon of a radio transmission at 3 x 105 Hz is
[h = 6.63 x 10-34Js]
  • A 2.00 x 10<sup style='font-size: smaller;'>-28</sup>J
  • B 1.30 x 10<sup style='font-size: smaller;'>-28</sup>J
  • C 2.00 x 10<sup style='font-size: smaller;'>- 29</sup>J
  • D 1.30 x 10<sup style='font-size: smaller;'>-29</sup>J
View Answer & Explanation
Question 40:
The percentage of the original nuclei of the sample of a radioactive substance left after 5 half - lives is
  • A 8%
  • B 5%
  • C 3%
  • D 1%
View Answer & Explanation