January 09, 2020 |
What is the technology used in a compact disc?
A Electrical
B Laser
C Electro magnetic
D Aeronautical
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 replay
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