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Question

What is a Prism?


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Solution

Prism:

  1. Prism is a piece of glass or other transparent material. The precise angles and the plane faces are used to analyze and reflect the light.
  2. A triangular prism is used to separate the white light into its constituent colors, which is known as a spectrum.
  3. Lights with different wavelengths refract in different amounts. For example, the light with a shorter wavelength (like violet) refracts or bents the most, whereas the light with a longer wavelength (like red) refracts or bents the least.
  4. This separation of the light spectrum into different colors is known as the dispersion of light.

There are four types of prisms, which are:

  1. Dispersive prisms.
  2. Reflective prisms.
  3. Polarizing prisms.
  4. Deflecting prisms.

Diagram:

Prism definition in Refraction and Dispersion of light - QS Study


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