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GK QUESTION#1382

What is the diameter of a Blu-ray Disc?

  1. A115 mm
  2. B100 mm
  3. C110 mm
  4. D120 mmCorrect answer
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Answer

D. 120 mm

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Explanation

120 mm. Blu-ray Disc is 120 mm in diameter and 1.2 mm thick, the same size as DVDs (digital versatile/video disks) and CDs (Compact disks).

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