Playing a Record

A gramophone record has a diameter of 30.5 centimeters. The centre is unused and has a diameter of 10 centimeters. There is also a smooth outer edge 1.25 centimeters wide around the recording.

If the grooves are 36to the centimeter, how far does the needle move during the actual playing of the record?

  1. VIJIT
  2. akrati
    • admin
      • Prabhat Kumar

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