Question

Луч падает на плоскопаралельную стеклянную пластину. На границе раздела воздух-стекло луч испытывает преломление и частичное отражение. Угол между преломленным и отраженным лучами равен 105*. Опеределите угол падения, если угол преломления составляет 25*. Ответ просьба давать с дано.

Answer 1

Нууу дано :
угол a = 105
угол В = 25
найти 
угол C - ?
решение :
105+25 = 130*

ну я думаю так. можешь закидать меня помидорками:))

Answer 2

Problem Analysis

We are given that a beam of light is incident on a parallel glass plate, and at the interface between air and glass, the beam undergoes refraction and partial reflection. The angle between the refracted and reflected beams is given as 105 degrees, and we need to determine the angle of incidence given that the angle of refraction is 25 degrees.

Solution

To solve this problem, we can use Snell's law, which relates the angles of incidence and refraction to the refractive indices of the two media involved. Snell's law is given by:

n1 * sin(θ1) = n2 * sin(θ2)

Where: - n1 is the refractive index of the first medium (air in this case) - θ1 is the angle of incidence - n2 is the refractive index of the second medium (glass in this case) - θ2 is the angle of refraction

We are given that the angle of refraction is 25 degrees, so we can substitute the values into Snell's law and solve for the angle of incidence.

Let's calculate the angle of incidence using the given information.

Calculation

Given: - Angle of refraction (θ2) = 25 degrees - Angle between refracted and reflected beams = 105 degrees

We can use the relationship between the angles of incidence and refraction to find the angle of incidence:

θ1 = arcsin((n2 * sin(θ2)) / n1)

Substituting the given values: - θ2 = 25 degrees - Angle between refracted and reflected beams = 105 degrees

We need to find the angle of incidence (θ1).

Solution Steps:

1. Convert the angles from degrees to radians. 2. Substitute the values into the equation. 3. Calculate the angle of incidence.

Let's calculate the angle of incidence using the given information.

Calculation

1. Convert the angles from degrees to radians: - θ2 = 25 degrees = 0.436332 radians

2. Substitute the values into the equation: - θ1 = arcsin((n2 * sin(θ2)) / n1)

3. Calculate the angle of incidence: - θ1 = arcsin((n2 * sin(θ2)) / n1) - θ1 = arcsin((1 * sin(0.436332)) / 1) - θ1 ≈ 0.436332 radians

Therefore, the angle of incidence is approximately 0.436332 radians.

Answer

The angle of incidence, given that the angle of refraction is 25 degrees and the angle between the refracted and reflected beams is 105 degrees, is approximately 0.436332 radians.