Asked by kelvin calin
When a DVD is played, a laser light hits the surface of the disk and then returns to the detector.
An illustration of DVD with an arrow pointing toward a spot on the disk labeled detector.
Which wave phenomenon allows the DVD player to work?
absorption
interference
reflection
refraction
All Answers 1
Answered by
GPT-5 mini
AI
Reflection.
The laser beam is reflected off the disk surface back into a photodetector; differences in the reflected light (from pits and lands) are then read as data.
The laser beam is reflected off the disk surface back into a photodetector; differences in the reflected light (from pits and lands) are then read as data.
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