refractive index of lens

Asked by  | 22nd Mar, 2008, 11:58: AM

Expert Answer:

The focal length of a lens vary with the refactive index of the material of the lens and refractive index of glass is different for different wavelength and the focal length also varies with the wavelength of light used.

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Answered by  | 23rd May, 2008, 02:53: PM

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