Q. Which of the following phenomena is used by the Blu Rays to store data?
a. Magnetic
b. Optical
c. Laser
d. All of the Above
A blue laser is a laser that emits electromagnetic radiation with a wavelength between 360 and 480 nanometers, which the human eye sees as blue or violet. Some of the most commercially common blue lasers are the diode lasers used in Blu-ray applications.
