Please refer to part (c). Here, the triangle is isosceles, and alpha (the angle at the top of the triangular prism) is 39.9 degrees. What is theta (the angle below the horizontal that the ray makes emerging from the prism on the right)? Question 3 options: 10.2 degrees 5.1 degrees 14.3 degrees 8.2 degrees
Please refer to part (c). Here, the triangle is isosceles, and alpha (the angle at the top of the triangular prism) is 39.9 degrees. What is theta (the angle below the horizontal that the ray makes emerging from the prism on the right)? Question 3 options: 10.2 degrees 5.1 degrees 14.3 degrees 8.2 degrees
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Chapter1: Units, Trigonometry. And Vectors
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Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Question
Please refer to part (c). Here, the triangle is isosceles, and alpha (the angle at the top of the triangular prism) is 39.9 degrees. What is theta (the angle below the horizontal that the ray makes emerging from the prism on the right)?
Question 3 options:
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10.2 degrees
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5.1 degrees
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14.3 degrees
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8.2 degrees
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Transcribed Image Text:### Refraction of Light in Different Mediums
The illustration presents three scenarios showcasing the refraction of light as it travels through different media.
#### Diagram (a):
- **Description**: A light ray enters a triangular glass prism from the air.
- **Details**:
- The prism is made of glass with a refractive index \( n_2 = 1.5 \).
- The surrounding medium is air with a refractive index \( n_1 = 1 \).
- The input ray is parallel to the base of the prism.
- The angle of incidence is labeled as \(\alpha\) and the angle of refraction as \(\theta\).
- **Explanation**: This demonstrates how a ray of light bends when entering a denser medium (glass) from a less dense medium (air).
#### Diagram (b):
- **Description**: A light ray travels through a rectangular glass block situated in water.
- **Details**:
- The glass has a refractive index \( n_2 = 1.5 \).
- Water has a refractive index \( n_1 = 1.3 \).
- The height of the glass block is marked as 10m, and the offset distance is labeled as \( d \).
- The angles of incidence and refraction are shown as \(\theta\).
- **Explanation**: This scenario illustrates the bending of light as it moves from water into glass and then back to water. The change in speed of light due to different refractive indices causes deviation.
#### Diagram (c):
- **Description**: A horizontal light ray passes through a triangular glass prism.
- **Details**:
- Similar to diagram (a), the prism is made of glass with a refractive index \( n_2 = 1.5 \).
- The surrounding medium is air.
- The input ray enters horizontally, and the refraction angle is labeled as \(\theta\).
- The prism angle is marked as \(\alpha\).
- **Explanation**: This demonstrates the bending of the ray through a prism with both entry and exit into the air, highlighting the prism's effect on light direction.
Each of these examples shows Snell's Law in action, which governs the relationship between incident and refracted angles when light crosses between materials of different refractive indices.
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