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Sunday, 21 June 2026
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Physics Past Questions and Answers

Topic: Simple Harmonic Motion (S.H.M)

Jamb Physics Questions - Simple Harmonic Motion (S.H.M)

Question 6:
A simple pendulum with a period of 2.0s has its length doubled. Its new period is
  • A 1.00s
  • B 1.41s
  • C 0.3s
  • D 2.83s
  • E 4.00s
View Answer & Explanation
Question 7:
An elevator of mass 4800kg is supported by a cable which can safely withstand a maximum tension of 60 000N. The maximum upward acceleration the elevator can have is
  • A 2.5ms<sup style='font-size: smaller;'>-2</sup>
  • B 5.0ms<sup style='font-size: smaller;'>-2</sup>
  • C 7.5ms<sup style='font-size: smaller;'>-2</sup>
  • D 10.0ms<sup style='font-size: smaller;'>-2</sup>
View Answer & Explanation
Question 8:
When the length I of a piece of wire under constant tension is varied, the relationship of the frequency of the vibration f\(\alpha\)/ is
  • A F\(\alpha\)/
  • B F\(\alpha \frac{1}{I^2}\)
  • C F \(\alpha\sqrt I\)
  • D F\(\alpha \frac{1}{1}\)
View Answer & Explanation
Question 9:
A simple pendulum of mass m moves along an arc pf a circle radius R in a vertical plane as shown above. What is the work done by gravity in a downward swing through the angle q to 0 degree
  • A MgR sinθ
  • B MgR (1- cos θ)
  • C MgR
  • D MgR (1 - sinθ)
View Answer & Explanation
Question 10:
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
View Answer & Explanation