WAEC Physics 2016 Objective — Question 27
Question 27 of 50 from the West African Examinations Council (WAEC) Physics 2016 Objective paper, with the correct answer and a full explanation.
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27. X-rays and infra-red rays are both electromagnetic. Which common property do the waves have? Both waves A. are longitudinal B. have the same frequency C. have the same wavelength D. travel at the same speed in a vacuum
- A. are longitudinal
- B. have the same frequency
- C. have the same wavelength
- D. travel at the same speed in a vacuumCorrect
Explanation
All electromagnetic waves are transverse waves and travel at the same speed in a vacuum (speed of light), though they have different frequencies and wavelengths.
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