4 years ago

Graphing Motion

Physics

1 answer:

KIM [24]4 years ago

3 0

The answer will be D

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A certain kind of glass has an index of refraction of 1.640 for blue light of wavelength 440 nm and an index of 1.595 for red li

DIA [1.3K]

Answer:

0.52°

Explanation:

refractive index for blue light, nb = 1.640

Refractive index for red light, nr = 1.595

Angle of incidence, i = 30°

Let the angle of refraction for blue light is rb and the angle of refraction for red light is rR.

By use of Snell's law for blue light

$n_{b}=\frac{Sin i}{Sin r_{b}}$

$1.64=\frac{Sin 30}{Sin r_{b}}$

$1.64=\frac{0.5}{Sin r_{b}}$

$r_{b}=17.75^{\circ}$

By use of Snell's law for red light

$n_{R}=\frac{Sin i}{Sin r_{R}}$

$1.595=\frac{Sin 30}{Sin r_{R}$

$1.595=\frac{0.5}{Sin r_{R}}$

$r_{R}=18.27^{\circ}$

The angle between the two beams, $\theta =r_{R}-r_{b}$

θ = 18.27° - 17.75°

θ = 0.52°

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