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Wednesday, 28 October 2026
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Physics Past Questions and Answers

Jamb 2000 Physics Questions

Question 36:
The velocity y of a particle in a time t is given by the equation
y = 10 + 2t2
Find the instantaneous acceleration after 5 seconds
  • A 60 ms<sup style='font-size: smaller;'>-2</sup>
  • B 20 ms<sup style='font-size: smaller;'>-2</sup>
  • C 15 ms<sup style='font-size: smaller;'>-2</sup>
  • D 10 ms<sup style='font-size: smaller;'>-2</sup>
View Answer & Explanation
Question 37:
A simple pendulum has a period of 17.0s. When the length is shorten by 1.5m, its period is 8.5s. Calculate the original length of the pendulum
  • A 4.0 m
  • B 3.0 m
  • C 2.0 m
  • D 1.5 m
View Answer & Explanation
Question 38:
A sonometer wire is vibrating at frequency fo. If the tension in the wire is doubted while the length and the mass per unit length are kept constant, the new frequency of vibration is
  • A <sup style='font-size: smaller;'>f<sub style='font-size: smaller;'>o</sub></sup>/<sub style='font-size: smaller;'>2</sub>
  • B 2f<sub style='font-size: smaller;'>o</sub>
  • C <sup style='font-size: smaller;'>f<sub style='font-size: smaller;'>o</sub></sup>/<sub style='font-size: smaller;'>√2</sub>
  • D F<sub style='font-size: smaller;'>o</sub>√2
View Answer & Explanation
Question 39:
A travelling wave moving from left to right has an amplitude of 0.15m, a frequency of 550Hz and a wavelength of 0.01m. The equation describing the wave is
  • A Y = 0.15 sin 200Ï€(x - 5.5t)
  • B Y = 0.15 sin π(0.01x - 5.5t)
  • C Y = 0.15 sin 5.5Ï€(x - 200t)
  • D Y = 0.15 sin Ï€(550x - 0.01t)
View Answer & Explanation
Question 40:
A transverse wave is applied to a string whose mass per unit length is 3 x 10-2kgm-1. If the string is under a tension 12N, the speed of the propagation of the wave is
  • A 5 ms<sup style='font-size: smaller;'>-1</sup>
  • B 20 ms<sup style='font-size: smaller;'>-1</sup>
  • C 30 ms<sup style='font-size: smaller;'>-1</sup>
  • D 40 ms<sup style='font-size: smaller;'>-1</sup>
View Answer & Explanation