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A source of sound produces waves in air of wavelength 1.65m. If the speed of sound in...

Physics
JAMB 2021

A source of sound produces waves in air of wavelength 1.65m. If the speed of sound in air is 330ms\(^{-1}\), the period of vibration in air is?

  • A. 200
  • B. 0.005
  • C. 0.5
  • D. 0.02
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Correct Answer: Option B
Explanation

V = \(\frac{\lambda}{T}\)

: v = 330ms\(^{-1}\)
 \(\lambda\) = 1.65m
 T = ?

330 = 1.65

T = \(\frac{1.65}{330}\) = 0.005s

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