Physics
Differentiate between reflection of light from a plane mirror and that from a plane wall.
Reflection
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Answer
| Reflection of light from a plane mirror | Reflection of light from a plane wall |
|---|---|
| When a ray of light is incident on a smooth and polished surface such as a plane mirror then regular reflection occurs. | When a ray of light is incident on a plane wall then irregular reflection occurs. |
| When a parallel beam of light is incident on a plane mirror, the reflected beam is also parallel and it is in a fixed direction . | When rays fall at different points on a plane wall then due to uneven surface at different points, light rays gets reflected in different directions. As a result, The reflected light spreads over a wide area and it does not follow a particular direction. |
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Related Questions
Draw a diagram to show the reflection of a ray of light by a plane mirror. In the diagram, label the incident ray, the reflected ray, the normal, the angle of incidence and the angle of reflection.
(a) Write three characteristics of image formed by a plane mirror?
(b) How is the position of the image related to the position of the object?
State the two laws of reflection of light.
Explain the following terms —
(a) plane mirror
(b) incident ray
(c) reflected ray
(d) angle of incidence
(e) angle of reflection.
Draw diagram/diagrams to show them.