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LCD uses ________

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LCD uses ________

(a) sematic crystals

(b) twisted nematic crystals

(c) nematic crystals

(d) cholesteric crystals

This question was addressed to me in a national level competition.

This is a very interesting question from Generation of DSBSC Waves topic in section Double Sideband Suppressed Carrier Modulation of Analog Communications

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Right choice is (b) twisted nematic crystals

Explanation: LCD uses liquid crystal display. It uses twisted nematic crystals which are a type of liquid crystal, consisting of a substance called the nematic. The nematic liquid crystal is placed between two plates of polarized glass.

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