Question

27) The wavelength of yellow light in air is 5875A0 find the frequency and wavelength of the light in glass of RI 1.5
(Ans =3790A";n=n=5.106x10^Hz)
1.55.
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Answer 1

Answer:

light travels at speed c = 3 x 10⁸m/s = fλ = frequency x wavelength

f = c/λ = 3 x 10⁸/5875 x 10⁻¹⁰ = 5.11 x 10¹⁴ Hz

wavelength in another medium is given by λm = λ/μ

λglass = 5875Α°/1.5 = 3916.67A°