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Light has wavelength 600 nm in free space. Itpasses into glass, which has an index of refractionof 1.50, What is the frequency of the light insidethe glass? |
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Answer» The speed of light is 299792458m/s. For this case, we will use the approximation 3.0*10^8m/s. Since frequency = speed/wavelength: Frequency of light = (3.0*10^8)/600nm= (3.0*10^8)/[600*10^(-9)m]= 5.0*10^14 Hz When light changes medium, only the wavelength changes, not the frequency. So, the answer is 5.0*10^14 Hz. |
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