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Question
Assertion (A): Significant figures for 0.200 is 3 where as for 200 it is 1.
Reason (R): Zero at the end or right of a number are significant provided they are not on the right side of the decimal point.
Options
Both A and R are true and R is correct explanation of A.
Both A and R are true but R is not a correct explanation of A.
A is true but R is false.
Both A and R are false.
Solution
A is true but R is false.
Explanation:
In the decimal portion, only trailing or final zeros are significant. This is in accordance with the rules of significant figures.
The given number, 0.200 has 3 significant figures whereas the number, 200 has only one significant figure because zeros present on the right side or at the end of the decimal number are significant and it is provided that they are present on the right side of the decimal point.
Also, zeros are not significant in numbers without decimals.
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