SSC CGL Exam > SSC CGL Videos > SSC CGL Tier 2 - Study Material, Online Tests, Previous Year > Tips & Tricks: Clocks
Clocks Tips and Tricks for Government Exams
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FAQs on Clocks Tips and Tricks for Government Exams
| 1. What are the different types of clocks? |  |
Ans. There are various types of clocks, including analog clocks, digital clocks, atomic clocks, and sundials. Analog clocks have hands that rotate around a dial to indicate the time, while digital clocks display the time numerically. Atomic clocks are extremely accurate and are used for scientific purposes, while sundials use the position of the sun to indicate the time.
| 2. How do analog clocks work? | |
Ans. Analog clocks consist of a clock face with numbers or hour markers and rotating hands. The hour hand rotates once every 12 hours, while the minute hand rotates once every hour. The second hand, if present, rotates once every minute. The hands are driven by a mechanism known as a clock movement, which is powered by a battery or by winding the clock.
| 3. What is the purpose of atomic clocks? | |
Ans. Atomic clocks are the most accurate timekeeping devices available. They use the vibrations of atoms (usually cesium or rubidium) to measure time with extreme precision. Atomic clocks are used in scientific research, telecommunications, global positioning systems (GPS), and other applications that require highly accurate timekeeping.
| 4. Can digital clocks be synchronized with atomic clocks? | |
Ans. Yes, digital clocks can be synchronized with atomic clocks through a process known as clock synchronization. This can be done manually by adjusting the digital clock's time based on the atomic clock's reading, or by using technologies such as radio signals or internet connections to automatically update the digital clock's time.
| 5. How do sundials work? | |
Ans. Sundials work by using the position of the sun to indicate the time. They consist of a flat plate or dial with a raised rod called a gnomon. As the sun moves across the sky, the gnomon casts a shadow on the dial, and the position of the shadow corresponds to the time of day. Sundials are dependent on the sun's position, so they are most accurate in regions near the equator and at specific times of the year.
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Dec 21, 2024 Last updated |
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