Posts Tagged ‘crystal’

LCD & Doppler effect

Panchami asked:

  1. what is liquid crystal display
  2. What is Doppler Effect ? ? ?

Ans:

LCD stands for Liquid Crystal Display. It works on the principles of polarization. By the selective alignment of liquid crystals light is blocked or allowed making the display transparent.

Comments - What do you think?  Posted by Mathew Abraham - February 18, 2012 at 3:43 am

Categories: Ask Physics   Tags: , , , , ,

Crystal Cleavage

Sly asks:

“what is crystal cleavage and what does it state about the nature of matter?”

Answer:

cleavage of calciteCleavage, in mineralogy, is the tendency of crystalline materials to split along definite crystallographic structural planes. These planes of relative weakness are a result of the regular locations of atoms and ions in the crystal, which create smooth repeating surfaces that are visible both in the microscope and to the naked eye.Cleavage plane can be described as the tendency of crystals to split along specific structural planes.

Cleavage plane is used mainly for the identification of the minerals. It is used in the electronic industry and also helps in cutting gems.

Comments - What do you think?  Posted by admin - January 3, 2011 at 5:39 pm

Categories: Ask Physics   Tags: , , , , , ,

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