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KCET2008PhysicsWave Optics

Which of the following as a dichroic crystal?

Options

  1. AQuartz
  2. BTourmaline
  3. CMica
  4. DSelenite

Correct answer

B. Tourmaline

Step-by-step solution

Some crystals such as tourmaline and sheets of iodosulphate of quinine have the property of strongly absorbing the light with vibrations r+r^ +90^ =180^ array ll & r + r ^ =90^ or & i + r ^ =90^ array perpendicular to a specific direction (called transmission axis) transmitting the light with vibrations parallel to it. This selective absorption of light is called dichroism.

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