- The hour hand of a clock moves 360 degrees in 12 hours. - This means the hour hand moves 30 degrees per hour (360 / 12) or 0.5 degrees per minute (30 / 60). - If the hour hand moved 75 degrees after midday (12:00), the time elapsed is 75 degrees / (30 hours and 30 minutes. - Starting from midday (12:00), 2 hours and 30 minutes later is 14:30.
The hour-hand of a clock moved 75° just after midday. The time in the clock was :
Asked in GPSC Prelims CSP 1 2021 · Topic: Mechanics (Newton's Laws of Motion and their applications)
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