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Standard VII
Physics
Units and Their Standardization
Question

The earliest clocks made by Egyptians in year 800 BC for measuring time was :
  1. sundial
  2. compass
  3. stop watch
  4. pendulum clock

A
sundial
B
pendulum clock
C
compass
D
stop watch
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Solution
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Sundial was the earliest clock made by the Egyptians in year 800 BC to measure time.

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