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Monday, 17 August 2026
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Physics Past Questions and Answers

Topic: Waves

Jamb Physics Questions - Waves

Question 36:
The lowest note emitted by a stretched string has a frequency of 40Hz. How many overtones are there between 40Hz and 150Hz?
  • A 1
  • B 2
  • C 3
  • D 4
View Answer & Explanation
Question 37:
Which of the following media allow the transmission of sound wave through them i. Air. ii. Liquids. iii. Solids.
  • A I and ii only
  • B I and iii only
  • C Ii and iii only
  • D I,ii and iii
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Question 38:
Which of the following properties is/are common to all waves? i. Diffraction ii. Refraction iii. Interference
  • A I only
  • B Ii only
  • C Ii and iii
  • D I, ii, and iii
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Question 39:
A piano wire 0.5m long has a total mass of 0.01kg and is stretched with a tension of 800N. Calculate the frequency of the wire when it sounds its fundamental note
  • A 200Hz
  • B 100Hz
  • C 4Hz
  • D 2Hz
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Question 40:
The speed of sound in air at sea-level is 340ms-1 while that of light is 300 000kms-1. How far (to the nearest meter) from the center of a thunderstorm is an observer who hears a thunder 2s after a lightening flash?
  • A 170ms<sup style='font-size: smaller;'>-1</sup>
  • B 340ms<sup style='font-size: smaller;'>-1</sup>
  • C 600ms<sup style='font-size: smaller;'>-1</sup>
  • D 680ms<sup style='font-size: smaller;'>-1</sup>
View Answer & Explanation