
The number of significant digits in \[0.0045\] is:
(A) two
(B) three
(C) four
(D) Five
Answer
466.5k+ views
Hint: In this question, we will use the concept of the significant figures. As we know that the significant digits are nonzero numbers. Zero is considered as the significant digit when it is in between the two significant digits.
Complete answer:
-As we know that the significant figures are the numbers which often measure the degree of accuracy of the value. The nonzero numbers are the significant numbers. The significant numbers are counted at the first nonzero digits.
-The significant figure is determined by the several rules. All the nonzero numbers are considered to be the significant figures. And when zeros are between the two nonzero numbers then they are the significant figure.
-When the zeros are at the right side of the decimal, then they are taken as the significant figure. And when the number ends with zeros to the left side of the decimal point, they are said to be significant figures.
-In this question, we are given the significant figure \[0.0045\].
-Here, we have the two digits before the numbers. And zeroes are at the left side of the numbers. So, they are not a significant number.
-And we have two non-zero digits \[4\] and \[5\].
-Hence, \[0.0045\] has the two significant digits.
Therefore, option A is correct.
Note:
As we know that if the zeroes which are at the left side of the decimal, they are not said to be the significant digits. All the non zeros numbers are considered as the significant numbers and if the zeros are after the non-zero number then it will be considered as the significant digits.
Complete answer:
-As we know that the significant figures are the numbers which often measure the degree of accuracy of the value. The nonzero numbers are the significant numbers. The significant numbers are counted at the first nonzero digits.
-The significant figure is determined by the several rules. All the nonzero numbers are considered to be the significant figures. And when zeros are between the two nonzero numbers then they are the significant figure.
-When the zeros are at the right side of the decimal, then they are taken as the significant figure. And when the number ends with zeros to the left side of the decimal point, they are said to be significant figures.
-In this question, we are given the significant figure \[0.0045\].
-Here, we have the two digits before the numbers. And zeroes are at the left side of the numbers. So, they are not a significant number.
-And we have two non-zero digits \[4\] and \[5\].
-Hence, \[0.0045\] has the two significant digits.
Therefore, option A is correct.
Note:
As we know that if the zeroes which are at the left side of the decimal, they are not said to be the significant digits. All the non zeros numbers are considered as the significant numbers and if the zeros are after the non-zero number then it will be considered as the significant digits.
Recently Updated Pages
Master Class 11 Economics: Engaging Questions & Answers for Success

Master Class 11 Business Studies: Engaging Questions & Answers for Success

Master Class 11 Accountancy: Engaging Questions & Answers for Success

The correct geometry and hybridization for XeF4 are class 11 chemistry CBSE

Water softening by Clarks process uses ACalcium bicarbonate class 11 chemistry CBSE

With reference to graphite and diamond which of the class 11 chemistry CBSE

Trending doubts
10 examples of friction in our daily life

One Metric ton is equal to kg A 10000 B 1000 C 100 class 11 physics CBSE

Difference Between Prokaryotic Cells and Eukaryotic Cells

State and prove Bernoullis theorem class 11 physics CBSE

What organs are located on the left side of your body class 11 biology CBSE

How many valence electrons does nitrogen have class 11 chemistry CBSE
