Clock – Basic Rules (āĻ˜āĻĄāĻŧā§€ – āĻŽā§ŒāĻ˛āĻŋāĻ• āĻ¨āĻŋāĻ¯āĻŧāĻŽ)





Clock – Basic Rules (āĻ˜āĻĄāĻŧā§€ – āĻŽā§ŒāĻ˛āĻŋāĻ• āĻ¨āĻŋāĻ¯āĻŧāĻŽ)


1. Dial (āĻĄāĻžāĻ¯āĻŧāĻžāĻ˛) : A clock's complete circle is 360°. (āĻāĻŸāĻž āĻ˜āĻĄāĻŧā§€ā§° āĻ¸āĻŽā§āĻĒā§‚ā§°ā§āĻŖ āĻŦā§ƒāĻ¤ā§āĻ¤ 360°āĨ¤)


2. Minute Hand (āĻŽāĻŋāĻ¨āĻŋāĻŸā§° āĻ•āĻžāĻāĻŸāĻž): i. The minute hand completes 360° in 60 minutes. (āĻŽāĻŋāĻ¨āĻŋāĻŸā§° āĻ•āĻžāĻāĻŸāĻžāĻ‡ 60 āĻŽāĻŋāĻ¨āĻŋāĻŸāĻ¤ 360° āĻ…āĻ¤āĻŋāĻ•ā§ā§°āĻŽ āĻ•ā§°ā§‡āĨ¤),       ii. Minute Hand = 6° per minute (āĻŽāĻŋāĻ¨āĻŋāĻŸā§° āĻ•āĻžāĻāĻŸāĻž = āĻĒā§ā§°āĻ¤āĻŋ āĻŽāĻŋāĻ¨āĻŋāĻŸā§‡ 6°)

3. Hour Hand (āĻ˜āĻŖā§āĻŸāĻžā§° āĻ•āĻžāĻāĻŸāĻž),  iii. The hour hand completes 360° in 12 hours. (āĻ˜āĻŖā§āĻŸāĻžā§° āĻ•āĻžāĻāĻŸāĻžāĻ‡ 12 āĻ˜āĻŖā§āĻŸāĻžāĻ¤ 360° āĻ…āĻ¤āĻŋāĻ•ā§ā§°āĻŽ āĻ•ā§°ā§‡āĨ¤)

  • 12 hours = 360∘ , 1 hour = 30∘ , 1 minute = 0.5∘

  • Hour Hand = 30° per hour (āĻĒā§ā§°āĻ¤āĻŋ āĻ˜āĻŖā§āĻŸāĻžāĻ¤ 30°)

  • Hour Hand = 0.5° per minute (āĻĒā§ā§°āĻ¤āĻŋ āĻŽāĻŋāĻ¨āĻŋāĻŸā§‡ 0.5°)


4. Relative Speed (āĻ†āĻĒā§‡āĻ•ā§āĻˇāĻŋāĻ• āĻ—āĻ¤āĻŋ) : Minute Hand − Hour Hand (āĻŽāĻŋāĻ¨āĻŋāĻŸā§° āĻ•āĻžāĻāĻŸāĻž − āĻ˜āĻŖā§āĻŸāĻžā§° āĻ•āĻžāĻāĻŸāĻž) : 6∘ − 0.5∘ = 5.5∘

Relative Speed = 5.5° per minute (āĻ†āĻĒā§‡āĻ•ā§āĻˇāĻŋāĻ• āĻ—āĻ¤āĻŋ = āĻĒā§ā§°āĻ¤āĻŋ āĻŽāĻŋāĻ¨āĻŋāĻŸā§‡ 5.5°)


Trick


Minute Hand = 6°/minute (āĻŽāĻŋāĻ¨āĻŋāĻŸā§° āĻ•āĻžāĻāĻŸāĻž = 6°/āĻŽāĻŋāĻ¨āĻŋāĻŸ)
Hour Hand = 0.5°/minute (āĻ˜āĻŖā§āĻŸāĻžā§° āĻ•āĻžāĻāĻŸāĻž = 0.5°/āĻŽāĻŋāĻ¨āĻŋāĻŸ)
Difference = 5.5°/minute (āĻĒāĻžā§°ā§āĻĨāĻ•ā§āĻ¯ = 5.5°/āĻŽāĻŋāĻ¨āĻŋāĻŸ)