Light of wavelength 589 nm in vacuum passes through a piece of fused quartz of index of refraction n = 1.458. What is the frequency of the light in fused quartz?
[Speed of light c = \(3.00×10^8 ms^{-1}\)]
A. \(5.09×10^{15}\)Hz B. \(5.09×10^{14}\) Hz C. \(1.77×10^{15}\) Hz D. \(1.77×10^{14}\) Hz
Correct Answer: B
Explanation
n=1.458, c=\(3.00 ×10^8 ms^-1\) ,λo = 589nm; f=?
Speed of light in a medium (v)=\(\frac{c}{n}\) where n is the refractive index of the medium
