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Saturday, 15 August 2026
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Physics Past Questions and Answers

Topic: Classification

Jamb Physics Questions - Classification

Question 1:
a guitar string is 75cm long. the wavelength of its fundamental note is
  • A 75cm
  • B 150cm
  • C 37.5cm
  • D 112cm
  • E 50cm
View Answer & Explanation
Question 2:
A string is sustaining a stationary wave when
  • A The frequency of the wave is not proportional to the wavelength of the wave
  • B The amplitude of vibration is always zero
  • C Two equal waves are travelling in opposite directions
  • D The waves are longitudinal
  • E The frequency is directly proportional to the length of the string
View Answer & Explanation
Question 3:
Which of the following types of waves cannot travel through a vacuum?
  • A Sound waves
  • B Light waves
  • C Infra-red waves
  • D X-radiation
  • E Redio waves
View Answer & Explanation
Question 4:
If the wavelength of a wave travelling with a velocity of 360ms-1 is 60m, the period of the wave is
  • A 6s
  • B 3.6s
  • C 0.17s
  • D 0.61s
  • E 3s
View Answer & Explanation
Question 5:
Which of the following electromagnetic waves has the shortest wavelength?
  • A Radio waves
  • B X-rays
  • C Infra-red
  • D Blue light
  • E Ultraviolet
View Answer & Explanation