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Saturday, 15 August 2026
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Physics Past Questions and Answers

Topic: Period of S.H.M

Jamb Physics Questions - Period of S.H.M

Question 6:
A stone of mass m kg is held h meters above the floor for 50s. The work done in joules over this period is
  • A Mh
  • B Mgh
  • C \(\frac{mgh}{50}\)
  • D O
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Question 7:
A sonometer wire of length 100cm under a tension of 10N, has a frequency of 250Hz. Keeping the length of the wire constant, the tension is adjusted to produce a new frequency of 350Hz. The new tension is
  • A 5.1N
  • B 7.1N
  • C 14.0N
  • D 19.6N
View Answer & Explanation
Question 8:
Which of the following affects the period of a simple pendulum? i. mass of the pendulum bob. ii. length of the pendulum. iii. acceleration due to gravity.
  • A I, ii, and iii
  • B Ii and iii only
  • C I and iii only
  • D I and ii only
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Question 9:
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
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Question 10:
The instantaneous value of the induced e.m.f as a function of time is ε = εo sin ωt where εo is the peak value of the e.m.f. The instantaneous value of the e.m.f., one quarter of the period is
  • A 0.00
  • B <sup style='font-size: smaller;'>ε<sub style='font-size: smaller;'>o</sub></sup>/<sub style='font-size: smaller;'>4</sub>
  • C <sup style='font-size: smaller;'>ε<sub style='font-size: smaller;'>o</sub></sup>/<sub style='font-size: smaller;'>2</sub>
  • D ε<sub style='font-size: smaller;'>o</sub>
View Answer & Explanation