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| 1 | |
What does the normal refer to in a ray diagram? |
| | A) | It is a line that is perpendicular to a surface where a ray of light meets the surface. |
| | B) | It is a ray of light that travels from a light source toward a surface. |
| | C) | It is the substance through which light travels. |
| | D) | It is the change in direction of a light ray when it bounces off a surface. |
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| 2 | |
What is the difference between an incident ray and a reflected ray? |
| | A) | An incident ray travels away from the surface, and a reflected ray travels toward the surface. |
| | B) | An incident ray travels toward the surface, and a reflected ray travels away from the surface. |
| | C) | An incident ray travels perpendicular to the surface and a reflected ray travels parallel to the surface. |
| | D) | An incident ray travels along the normal away from the surface, and a reflected ray travels along the normal towards the surface. |
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| 3 | |
What are the two laws of reflection? |
| | A) | 1) The incident ray, reflected ray, and normal always lie on the same plane. 2) The angle of reflection is greater than the angle of incidence. |
| | B) | 1) The incident ray, reflected ray, and normal lie in different planes. 2) The angle of reflection is less than the angle of incidence. |
| | C) | 1) The incident ray, reflected ray, and normal always lie on the same plane. 2) The angle of reflection is equal to the angle of incidence. |
| | D) | 1) The incident ray, reflected ray, and normal always lie on the same plane. 2) The angle of reflection and the angle of incidence must both be greater than 90 degrees. |
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| 4 | |
The orientation of an image describes whether the image is… |
| | A) | real or virtual. |
| | B) | upright or inverted. |
| | C) | smaller, larger, or equal in size to the object. |
| | D) | farther or closer to the mirror than the distance between the object and the mirror. |
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| 5 | |
Which characteristic is true about the image seen in a plane mirror? |
| | A) | The image appears larger than the object. |
| | B) | The image’s orientation is the opposite of the object’s orientation. |
| | C) | The image appears closer to the mirror than the distance between the object and the mirror. |
| | D) | The image is a virtual image. |
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| 6 | |
When an image is reflected in a plane mirror, what does the term lateral inversion mean? |
| | A) | The image appears reversed, right to left, and left to right, compared with the object. |
| | B) | The image appears inverted when the object is upright. |
| | C) | The image appears reversed, right to left, and left to right, compared with the object and it is inverted. |
| | D) | The image reflected is a real image instead of a virtual image. |
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