A very type of glass is used in making flat-panel computer monitors. For light w

Question

A very type of glass is used in making flat-panel computer monitors. For light with a wavelength of 663.5 nm, the refractive index of glass is na= 1.5160. For light with a wavelength in air of 458.3 nm, the refractive index of the glass is nb= 1.5290. Determine the difference in, a-b, in their wavelengths inside the glass. A very type of glass is used in making flat-panel computer monitors. For light with a wavelength of 663.5 nm, the refractive index of glass is na= 1.5160. For light with a wavelength in air of 458.3 nm, the refractive index of the glass is nb= 1.5290. Determine the difference in, a-b, in their wavelengths inside the glass.

Explanation / Answer

Here,

for the wavelength 663.5 nm

na = 1.5160

for the wavelength in glass

La = 663.5/(1.5160)

La = 437.7 nm

for the wavelength = 458.3 nm

nb = 1.5290

Lb = 458.3/(1.5290)

Lb = 299.74 nm

Now , for difference in the wavelength

difference in the wavelength = La - Lb

difference in the wavelength = 437.7 - 299.74

difference in the wavelength = 138 nm

the the difference in their wavelengths inside the glass is 138 nm

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