Question

how blue ray disc is different from CD and DVD ?
who give answer I will mark as brainlist ​

Answer 1

Answer:

Both Blu-rays and DVDs disc are based on optical storage and use laser technology to read the disc. But the DVD uses a red laser to read the disc, which works at 650nm of wavelength. On the other hand, Blu-ray discs work on blue laser, which works on a shorter wavelength or 450nm