Solution
The correct answer is option 1.
Key Points
if the disk platters rotate at 5400rpm, the time required for one complete rotation, which is the maximum rotational delay,
5400 rotations= 1 minute
one rotation = \(\frac{1}{5400}\) × 60 seconds
maximum rotational delay = 0.011seconds.
∴ Hence the correct answer is 0.011seconds.