A disc ruled with radial line is used 2 check d turn-table speed of transcription untill 4 playing record at 66/2 rev/min.if d disc appears stationary when viewed in d night from a neon discharge lamp run from a 240v, 50Hz a.c.supply should be
(a) The angle btw lines
(b) the total num of lines?
In Physics
1 Answers Available
Asked by Oke chukwu on 31st May, 2020
Ask Your Own Question
Quick Questions
See More Physics Questions
Answers ({{ comment_count }})
Please wait...
Modal title
Report
Block User
{{ feedback_modal_data.title }}