Answer
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Hint: Wavelengths are often defined because the distance between two successive crests or troughs of a wave. it's measured within the direction of the wave. The duration in which a wave covers a distance equal to one wavelength is called one time period. Wave speed is the distance covered by the wave per unit time. Therefore, the wavelength of the wave can be found out by using the formula $n\lambda$ =v$ \times $T
Complete step by step solution:
The following equation is understood because the wavelength formula or the wavelength equation:
$n\lambda$ = $\dfrac{v}{f}$
$n\lambda$ = v$ \times $T (where ' v' is that the speed of the wave and 'f' is that the frequency of the wave; T=1/f)
Thus, Wavelength of the wave = Speed of the wave/ Frequency
$ \Rightarrow $ Wavelength of the wave = Speed of the wave$ \times $time period
in this question, if the speed of a wave is 330m/s and time period of the wave is 1 millisecond therefore, the frequency of the waves is
f=$\dfrac{1}{T}$$ = \dfrac{1}{{1 \times {{10}^{ - 3}}}} = 1000Hz$
$n\lambda$ = $\dfrac{v}{f}$
$ \Rightarrow n\lambda$ = v$ \times $T
$ \Rightarrow n\lambda$ =330$ \times $.001
$ \Rightarrow n\lambda$ =.33m
Note: Wavelength is that the distance from one crest to a different, or from one trough to a different , of a wave (which could also be an electromagnetic radiation , an acoustic wave , or the other wave). Crest is the highest point of the wave whereas the trough is the lowest. Since wavelength is distance/length, it's measured in units of lengths like metres, centimetres, millimeters, nanometres, etc.
Complete step by step solution:
The following equation is understood because the wavelength formula or the wavelength equation:
$n\lambda$ = $\dfrac{v}{f}$
$n\lambda$ = v$ \times $T (where ' v' is that the speed of the wave and 'f' is that the frequency of the wave; T=1/f)
Thus, Wavelength of the wave = Speed of the wave/ Frequency
$ \Rightarrow $ Wavelength of the wave = Speed of the wave$ \times $time period
in this question, if the speed of a wave is 330m/s and time period of the wave is 1 millisecond therefore, the frequency of the waves is
f=$\dfrac{1}{T}$$ = \dfrac{1}{{1 \times {{10}^{ - 3}}}} = 1000Hz$
$n\lambda$ = $\dfrac{v}{f}$
$ \Rightarrow n\lambda$ = v$ \times $T
$ \Rightarrow n\lambda$ =330$ \times $.001
$ \Rightarrow n\lambda$ =.33m
Note: Wavelength is that the distance from one crest to a different, or from one trough to a different , of a wave (which could also be an electromagnetic radiation , an acoustic wave , or the other wave). Crest is the highest point of the wave whereas the trough is the lowest. Since wavelength is distance/length, it's measured in units of lengths like metres, centimetres, millimeters, nanometres, etc.
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