What is the technology used in a compact disc?

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RRB Non Technical Exam (Secunderabad) 2016 click here to view all questions

What is the technology used in a compact disc?

AElectrical

BLaser

CElectro magnetic

DAeronautical

rihad ? Jan 10 '2020 at 14:20

Correct answer is: Laser

Explanation:

The compact disc is an evolution of LaserDisc technology, where a focused laser beam is used that enables the high information density required for high-quality digital audio signals.

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Correct answer is: Laser Explanation: The compact disc is an evolution of LaserDisc technology, where a focused laser beam is used that enables the high information density required for high-quality digital audio signals. rihad ? answered Jan 10 '2020 at 14:20 All Comments

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