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Thursday, 14 May 2026
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Physics Past Questions and Answers

Jamb 2015 Physics Questions

Question 41:
The optical instrument which is suitable for viewing a nearby objects is ...........?
  • A Telescope
  • B Sextant
  • C Microscope
  • D Periscope
View Answer & Explanation
Question 42:
The symbol −10X used to represent which of the particles?
  • A Proton
  • B Neutron
  • C Electrons
  • D Atoms
View Answer & Explanation
Question 43:
A radioactive source emits X—rays of very short wavelength (10 -13m ) what is the frequently of these rays?
  • A 2 à— 10<sup style='font-size: smaller;'>18</sup>HZ
  • B 3 × 10 <sup style='font-size: smaller;'>19</sup>HZ
  • C 3 à— 10<sup style='font-size: smaller;'>21</sup>HZ
  • D 3 à— 10<sup style='font-size: smaller;'>-19</sup>HZ
View Answer & Explanation
Question 44:
The strength of an electromagnet increase with
  • A Increase in the number of turn of the coil
  • B Decrease in current with the coil
  • C Increase in the distance between the pole
  • D Increase in current without the coil
View Answer & Explanation
Question 45:
A platinum resistance thermometer wire has a resistance of 70hms at 0°Cand 7.5 Ohms at 100°C. Calculate the temperature of the wire when the resistance is 7.2 Ohms
  • A 15°C
  • B 40°C
  • C 20°C
  • D 10°C
View Answer & Explanation