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Tuesday, 21 April 2026
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Physics Past Questions and Answers

Jamb 2005 Physics Questions

Question 41:
\( ^{235} _{92}U + ^1 _0n → ^{144} _{56}Ba + ^{90} _{36}Kr +2X \)
In the reaction above, X is
  • A Electron
  • B Proton
  • C Neutrino
  • D Neutron
View Answer & Explanation
Question 42:
Two liquids L1 and L2 are contained in a U - tube. The height and the density of L1 are 8 cm and 103 kgm-3 respectively. If the density of L2 is 800 kgm-3, its height measured from the same level is
  • A 8 cm
  • B 10 cm
  • C 16 cm
  • D 12 cm
View Answer & Explanation
Question 43:
106J of heat is required to boil off completely 2kg of a certain liquid. Neglecting heat lost to the surroundings, the latent heat of vaporization of the liquid is
  • A 2.0 x 10<sup style='font-size: smaller;'>6</sup>J kg<sup style='font-size: smaller;'>-1</sup>
  • B 5.0 x 10<sup style='font-size: smaller;'>6</sup>J kg<sup style='font-size: smaller;'>-1</sup>
  • C 2.0 x 10<sup style='font-size: smaller;'>5</sup>J kg<sup style='font-size: smaller;'>-1</sup>
  • D 5.0 x 10<sup style='font-size: smaller;'>5</sup>J kg<sup style='font-size: smaller;'>-1</sup>
View Answer & Explanation
Question 44:
The figure above shows three capacitors, 2μF, 3μF and 6μF connected in series. If the p.d across the system is 12V, the p.d, across the 6μF capacitor is
  • A 4V
  • B 12V
  • C 2V
  • D 6V
View Answer & Explanation
Question 45:
If the distance between two point charges its increased by a factor of four, the magnitude of the electrostatic force between them will be
  • A <sup style='font-size: smaller;'>1</sup>/<sub style='font-size: smaller;'>4</sub> of its former value
  • B <sup style='font-size: smaller;'>1</sup>/<sub style='font-size: smaller;'>16</sub> of its former value
  • C <sup style='font-size: smaller;'>1</sup>/<sub style='font-size: smaller;'>2</sub> of its former value
  • D 4 times its former value
View Answer & Explanation