Reflection of light from a plane mirror | Reflection of light from a plane wall |
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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. |