Modern Physics Introduction Standing Wavelength and Frequency

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Homework Statement


Find the length of the smallest standing wave that can be formed with light having a frequency of 600THZ.


Homework Equations



[tex]f = 600*10^{12}Hz[/tex]

[tex]c = 2.998x10^{8}\frac{m}{s}[/tex]

[tex]\lambda f=c[/tex]


The Attempt at a Solution



[tex]\lambda f=c[/tex]

[tex]\lambda (600*10^{12}Hz)=(2.998x10^{8}\frac{m}{s}[/tex]

[tex]\lambda = \frac{2.998x10^{8}\frac{m}{s}}{600*10^{12}Hz}[/tex]

[tex]\lambda = 4.997x10^{-7}m[/tex]

I think something is wrong because it is asking me to find a the "smallest" indicating that the wave can multiple values.
 

Answers and Replies

  • #2
ideasrule
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Think about a string. What's the relationship between the wavelength of any standing wave on the string and the length of the string? What's the longest possible wavelength on a string of fixed length?
 

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