One of the layers (the surface one) is made in such a way that a sufficiently strong laser light can "shine through" it to reach the second layer.
Maybe. Dual layers just means it can read 2 layers of a disc.
Answer: How dual layer CD drives workCheck out this website: http://computer.howstuffworks.com/cd-burner.htm The main difference between a single layer and dual layer CD is that a dual layer CD or DVD has two layers of film on which data can be written to. One layer (the bottom one) is semi-silvered so that depending on the intensity of the laser, data can be read on each surface. The laser adjusts its intensity accordingly to which layer it want to read/write from.
You cannot. A DVD's information is encoded differently than that of a music CD, as well as being up to 8x as dense (for a dual-layer DVD). Additionally, a dual-layer DVD uses two different wavelengths of laser to read the two layers. It's a completely different technology. DVD players can play music CD's, because they were designed to be backwards-compatible.
Generally is 2 layer in a Dual layer DVD.
There are such things as Dual Layer DVD's, DVD-R9. They have two data layers and a capacity of around 8.5GB, and require a special burner to write to them, though can usually be read by most normal readers.
dual layer means there are layers of pits and lands on the dvd
A dual laser beam refers to a setup where two laser beams are emitted simultaneously. This can be used for various applications such as precision cutting, 3D printing, or optical trapping in scientific research. By having two beams, it can allow for more complex operations or increased efficiency in certain processes.
a laser is used to read the information on the bottom of the disk
A laser
the laser has changed society by changing the way we store and read information
Red laser is normally used to read CDs while blue-violet laser is used to read DVDs. The reason is that blue-violet is a higher energy laser with a much smaller wavelenght - 650 billionths of a meter -, so the pits on the DVD's can be smaller and closer together than those on the CDs'.
No, 'laser' is not a palindrome because it is not spelled the same way forward and backward.