What is the difference between 160cm and 160.0cm?
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Answered by
9
160.0cm is more accurate than 160cm. So 160.0cm is more significant than 160cm. U can be read into 12class about this.
Answered by
5
Measurements can be made into more accurate or precise by using appropriate instrument with proper scale.
Although 160cm and 160.0cm both readings looks equivalent but their scientific significance is different.
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-->160 cm means measurement is made by a scale which can read up to cm unit.
-->True value may lie between 159cm to 161 cm.
--->In 160cm , 1 and 6 are certain and zero is uncertain.
Therefore in 160cm has 3 significant numbers.
---> 160.0cm the measurement is made by instrument with scale that can read up to one tenth of cm (up to mm)
--> true value may lie between 1559.9 and 160.01cm.
In this case first three digits are certain and 4th digit is uncertain .
So 160.0cm has 4 significant digits in this figure.so scale used is more precise for measurement.
Although 160cm and 160.0cm both readings looks equivalent but their scientific significance is different.
****************************************
-->160 cm means measurement is made by a scale which can read up to cm unit.
-->True value may lie between 159cm to 161 cm.
--->In 160cm , 1 and 6 are certain and zero is uncertain.
Therefore in 160cm has 3 significant numbers.
---> 160.0cm the measurement is made by instrument with scale that can read up to one tenth of cm (up to mm)
--> true value may lie between 1559.9 and 160.01cm.
In this case first three digits are certain and 4th digit is uncertain .
So 160.0cm has 4 significant digits in this figure.so scale used is more precise for measurement.
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