RRB NTPC · Question 51
A DVD is an example of-
Show answer & explanation
Answer: (D) Optical disk
Explanation
A DVD stores data as pits read by a laser, so it is an optical disk, like a CD or Blu-ray.
Railways PYQCBT 2 2017
RRB NTPC · Question 51
Answer: (D) Optical disk
A DVD stores data as pits read by a laser, so it is an optical disk, like a CD or Blu-ray.