A) Quartz
B) Tourmaline
C) Mica
D) Selenite
Correct Answer: B
Solution :
Some crystals such as tourmaline and sheets of iodosulphate of quinine have the property of strongly absorbing the light with vibrations perpendicular to a specific direction (called transmission axis) transmitting the light with vibration parallel to it. This selective absorption of light is called dichroism.
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