Electronics and Communication Engineering - Communication Systems - Discussion

Discussion Forum : Communication Systems - Section 2 (Q.No. 23)
23.
In a CD player the speed of CD is
constant at 500 rpm
constant at 200 rpm
varies from 200 to 500 rpm
none of the above
Answer: Option
Explanation:

Since the circumference of outer tracks is more than that of tracks near the centre, the speed of disc is varied from 200 rpm to 500 rpm.

Discussion:
Be the first person to comment on this question !

Post your comments here:

Your comments will be displayed after verification.