Attempt this previous-year question. The correct option stays hidden until you choose.
A new optical disc format known as the Blu-ray Disc (BD) is becoming popular. In what way is it different from the traditional DVD?
1. DVD supports Standard Definition video while BD supports High Definition video.
2. Compared to a DVD, the BD format has several times more storage capacity.
3. The thickness of BD is 2.4 mm white that of DVD is 1.2 mm.
Which of the statements given above is/are correct?
Pick an option to check yourself.
• Correct Answer: B
• BD supports HD (720p/1080p) vs DVD's SD; single-layer BD stores 25 GB vs DVD's 4.7 GB.
• Statement 3 is incorrect: both DVD and BD have 1.2 mm thickness; difference lies in laser wavelength and cover layer depth.
Attempt Prelims MCQs or open Mains questions by paper — then continue the same bank inside the app with visual decks.
GyanGram