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Describe how an image is formed by a plane mirror. Distinguish between real and virtual images. Find the location and characterize the orientation of an image created by a plane mirror.
- 12.2.4: Plane Mirrors
Image in a Plane Mirror. The sketch below shows how we see...
- 12.2.4: Plane Mirrors
Apr 18, 2024 · Plane Mirror vs Spherical Mirror. A plane mirror is a flat mirror, meaning its surface is flat and reflects light without distorting the image. It reflects light according to the law of reflection, which states that the angle of incidence is equal to the angle of reflection.
What Is Reflection on a Plane Mirror? When the light rays get stroked on the flat mirror, they get reflected back. According to the laws of reflection, the angle of reflection is equal to the angle of incidence. The image is obtained behind the plane, which is present in the mirror.
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In a plane mirror, reflections appear laterally inverted compared to the object when it is facing us. Mirrors reflect what is in front of them. Reflections are laterally inverted as objects are turned to face a mirror.
- Image Formation by Plane Mirror. The "object" could be any physical object or a source of light, but we often depict it as an upright arrow.
- Concave Mirror. The distance from the focal point to the mirror is called the focal length, f. We will not go into the details of the proof, but it can be shown using the small angle approximation that the focal length is equal to half the radius of curvature
- Principal Rays of a Concave Spherical Mirror. Using rays to determine the location, orientation, and the size of the image is known as ray tracing.
- Deriving Equations for a Concave Spherical Mirror. Since we are using the small angle approximation (we assume that all distances are close to the optical axis), the mirror can be approximated as flat where light is reflected, as shown by the bold vertical line.
Image in a Plane Mirror. The sketch below shows how we see an image in a plane mirror. Plane mirrors work because the light rays create a virtual image behind the mirror. Light rays from the object strike the mirror and reflect according to the law of reflection.
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Sep 19, 2024 · Learn more about Reflection On A Plane Mirror in detail with notes, formulas, properties, uses of Reflection On A Plane Mirror prepared by subject matter experts. Download a free PDF for Reflection On A Plane Mirror to clear your doubts.