Question

radiation of Violet and red colours are made fall on glass slab which ofthese will have minimum and maximum lateral displacement and why.?​

Answer 1

• Red colour will be having minimum deviation and maximum deviation will be of violet colour.

• Deviation in a glass slab depends on the refractive index, depending on the luminous wavelength used.

• Red colour has a greater wavelength, which means less refractive index and less variance.

• Violet colour has a lower wavelength, which means higher refractive index and higher variance.