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Write a short note on different types of clocks.
Clocks are used to measure .
Clocks based on :
:
It is a . It has three hands to show the time.
- Hours hand is , which shows the 'hour'.
- Minutes hand is , which shows the 'minute'.
- Seconds hand is , which shows the 'second'.
It can be operated .
:
These clocks are also known as . It displays the time in .
It can also have display screen. Nowadays, these clocks are designed to show . Hence, they are used in .
Clocks based on :
:
, which are regulated by a , are used to activate these clocks.
The of a vibrating crystal is extremely . Hence, they are more precise than .
The precision of these clocks is one second in every
:
The that occur within the atom are used in these clocks. The precision of these clocks is one second in every
They are used by and in the navigation systems like .
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