A sound wave traveling at STP has a period of .0023 seconds. The wavelength of this sound is closest to 1)1.4E5 2)6.9E-6

Question

A sound wave traveling at STP has a period of .0023 seconds. The wavelength of this sound is closest to
1)1.4E5
2)6.9E-6
3)0.76m
4)76m

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RobertKer 3 years 2021-09-04T17:17:23+00:00 1 Answers 4 views 0

Answers ( )

  1. Latifah
    0
    2021-09-04T17:19:15+00:00
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    Answer: 3

    Wavelength = 0.76m

    Explanation:

    When sound wave is travelling at standard temperature and pressure ( STP), its speed will be equal to normal speed of sound which is equal to 331 m/s

    Given that the period of the wave is 0.0023 seconds.

    Wave speed = wavelength/period

    Substitute the wave speed and the period to obtain wavelength

    331 = wavelength/0.0023

    Cross multiply

    Wavelength = 331 × 0.0023

    Wavelength = 0.7613 metre

    The wavelength of this sound is closest to 0.76 m

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