The speed of a light wave in a certain transparent material is 0.589 times its speed in vacuum, which is 3.00 x108 m/s. When yellow light with a frequency of 5.25 x104 Hz passes through this material, what is its wavelength in nanometers? Number 囗 n m

Respuesta :

Answer:

The wavelength of the yellow light in given transparent material is 337 nm

Explanation:

Speed of the light in vacuum , [tex]c=3.00\times 10^{8}\frac{m}{s}[/tex]

Therefore speed of light in the given material is [tex]v=0.589\times c[/tex]

=>[tex]v=0.589\times 3.00\times 10^{8}\frac{m}{s}=1.767\times 10^{8}\frac{m}{s}[/tex]

frequency of yellow light , [tex]f=5.25\times 10^{14}Hz[/tex]

Wavelength in the given transparent material , [tex]\lambda =\frac{v}{f}=\frac{1.767\times 10^{8}}{5.25\times 10^{14}}m[/tex]

=> [tex]\lambda =3.366\times 10^{-7}m=336.6nm[/tex]

=>[tex]\lambda \simeq 337nm[/tex]

Thus the wavelength of the yellow light in given transparent material is 337 nm

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