What is the reflection of light from a smooth and shiny surface like a mirror called?

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  1. Spread reflection
  2. Irregular reflection
  3. Specular reflection
  4. Diffuse reflection

Answer (Detailed Solution Below)

Option 3 : Specular reflection
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The correct answer is option 3.

Specular reflection: The reflection of light from a smooth and shiny surface like a mirror is called specular reflection.

Key Characteristics:

  • Occurs on smooth surfaces (e.g., mirrors, calm water).
  • Light rays reflect in a single, predictable direction.
  • Follows the law of reflection: the angle of incidence equals the angle of reflection.
  • Produces clear images, like your reflection in a mirror.


Additional Information 

Other types of reflection are:
Spread reflection: Spread reflection, also known as diffuse or mixed reflection, occurs when light is reflected in a wide range of directions from a surface with imperfections, such as a rough surface or an uneven material. 
Irregular reflection: When a beam of light falls on such a surface which is not perfectly smooth and polished, such as a wall, wood paper etc. is known as irregular reflection.

Diffuse reflection: Diffuse reflection is the reflection of light from a surface such that an incident ray is reflected at many angles, rather than at just one angle as in the case of specular reflection.

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