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The wavelength of a wave traveling with a velocity of 420 ms-1 is 42 m....

Physics
JAMB 2010

The wavelength of a wave traveling with a velocity of 420 ms-1 is 42 m. what is its period?

  • A. 1.2 s
  • B. 1.0 s
  • C. 0.5 s
  • D. 0.1 s
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Correct Answer: Option D
Explanation

V = fλ
f = (v)/λ = (420)/42 = 10 HZ
Period, T = (1)/F = (1)/10 = 0.1 secs

There is an explanation video available below.


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Explanation Video

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WAEC offline past questions - with all answers and explanations in one app - Download for free
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WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
WAEC May/June 2024 - Practice for Objective & Theory - From 1988 till date, download app now - 99995
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
WAEC offline past questions - with all answers and explanations in one app - Download for free