CBSE Class 9 Computer Applications Question 37 of 72

Input and Output Devices — Question 9

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Question

Question 9

The diameter of the standard CD is ............... .

  1. 70 mm
  2. 80 mm
  3. 120 mm
  4. 180 mm
Answer

120 mm

Reason — The diameter of the standard CD is 120 mm.