Final answer:
In a CD, the absence of light, which occurs when a pit is encountered by the laser, represents a binary digit "0," not "1," thus making the statement false.
Step-by-step explanation:
In an optical disc like a CD (Compact Disc), data is stored in the form of pits and lands on the disc's surface. A laser system within a CD player is used to read this digital information.
According to the storage mechanism of a CD, reflected light from the lands is interpreted as binary digit "1," while the absence of light, due to destructive interference when the laser encounters a pit, is read as binary digit "0." Therefore, the statement that the absence of light is read as binary digit 1 is false.