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MHT CET202015 Oct 2020Morning ShiftPhysicsRotational MotionActual

The relative angular speed of hour hand and second hand of a clock is

Options

  1. A359 21600
  2. B719 21600
  3. C11 21600
  4. D9 21600

Correct answer

B. 719 21600

Step-by-step solution

_ h _ s = 2 12 60 60 2 60 = 1 12 60 _ s =720 _ h _ s - _ h _ s = 720-1 720 _ s - _ h = 719 720 _ s = 719 720 2 60 = 719 21600

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