A laser and a lens system are used to read information on a CD.
A laser and a lens system are used to read information on a CD.
a laser is used to read the information on the bottom of the disk
The answer is not simple.
It is not possible. Because you need that laser ray to burn the information into the cd.
Cd- rom
Compact Disc-Read Only Memory (CD-ROM) drives use laser beams to read information on a rotating synthetic disk.
CD-ROM works on the principle of the LASER and it is a major application of the LASER
A CD is read by a laser, and since the laser does not move, the CD has to move in order to present the coded sequence of holes that the laser is reading.
laser+book=CD
A CD's reflection is called a diffraction grating. This grating allows the CD player to read the data encoded on the disc by diffracting the laser beam and converting it back into digital information.
This method may vary greatly depending on the device you are using to play the CD. Insert the CD into the disk slot/tray, with many devices, the CD will begin playing automatically. Check to make sure the volume is turned on to an audible level or, if you are using head phones, that they are plugged in fully. If the CD has not started, or isn't playing, press the "Play" button. If the issue persists, there may be a problem with the device. For more specific information about getting a CD to play in a CD player, please edit and add detail to the question or add details to the discussion page.