When a ray is refracted from one medium into another medium, the wavelength changes from 6000 Å to 4000 Å . The critical angle for a ray from second medium will be

Question

When a ray is refracted from one medium into another medium, the wavelength changes from 6000 Å to 4000 Å . The critical angle for a ray from second medium will be (A) (cos)- 1 ((2/3)) (B) (sin)- 1 ((2/3)) (C) (tan)- 1 ((3/2)) (D) (sin)- 1 ((2/√13))

Tardigrade Admin · Accepted Answer

sin C=(μ R/μ D)=(λ D/λ R)=(4000/6000)=(2/3)

Q. When a ray is refracted from one medium into another medium, the wavelength changes from $6000 Å$ to $4000 Å$ . The critical angle for a ray from second medium will be

$(cos)^{- 1} (\frac{2}{3})$

$(s in)^{- 1} (\frac{2}{3})$

$(t an)^{- 1} (\frac{3}{2})$

$(s in)^{- 1} (\frac{2}{13})$

$s in C = \frac{μ _{R}}{μ _{D}} = \frac{λ _{D}}{λ _{R}} = \frac{4000}{6000} = \frac{2}{3}$

Q. When a ray is refracted from one medium into another medium, the wavelength changes from 6000Å to 4000Å . The critical angle for a ray from second medium will be

(cos)−1(32​)

(sin)−1(32​)

(tan)−1(23​)

(sin)−1(13​2​)