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Speed, Time & Distance: Clocks Video Lecture | Quantitative Aptitude (Quant) - CAT

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FAQs on Speed, Time & Distance: Clocks Video Lecture - Quantitative Aptitude (Quant) - CAT

1. How do mechanical clocks work?
Ans. Mechanical clocks work by using gears, weights, and springs to regulate the movement of the hands. As the gears turn, they move the hands of the clock at a steady pace.
2. What is the difference between an analog clock and a digital clock?
Ans. An analog clock has hands that point to numbers on a circular dial to tell the time, while a digital clock displays the time in numerical format using digits.
3. Why do clocks sometimes need to be adjusted for daylight saving time?
Ans. Clocks need to be adjusted for daylight saving time to make better use of daylight during the longer days of summer. This adjustment is made to save energy and make better use of natural light.
4. How accurate are atomic clocks?
Ans. Atomic clocks are incredibly accurate, losing only about one second every few million years. They work by measuring the vibrations of atoms to keep time.
5. Can you explain how a sundial works?
Ans. A sundial works by using the position of the sun to cast a shadow onto markings that indicate the time. The shadow moves as the sun travels across the sky, allowing people to tell time based on the shadow's position.
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