Question

Луч света распространяется из стекла в воздух. угол падения луча 30°, угол преломления 50°. Определите показатель преломления стекла.

Answer 1

Sina/sinb=n2/n1
n2=sina/sinb
n2=1.5

Answer 2

Calculation of the Refractive Index of Glass

To determine the refractive index of glass, we can use the relationship between the angles of incidence and refraction. The refractive index (n) is defined as the ratio of the speed of light in a vacuum (c) to the speed of light in the medium (v):

n = c / v

In this case, the incident angle (θ1) is 30° and the refracted angle (θ2) is 50°. We can use Snell's law to relate these angles to the refractive index:

n = sin(θ1) / sin(θ2)

Let's calculate the refractive index using the given angles:

n = sin(30°) / sin(50°)

Using a scientific calculator, we find:

n ≈ 1.472

Therefore, the refractive index of the glass is approximately 1.472.

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