Significant Figures and Rounding off Numbers
PHXI02:UNITS AND MEASUREMENTS

367628 Consider the following rules of significant figures.
I.
All the non-zero digits are significant.
II.
All the zeros between two non-zero digits are significant.
III.
The terminal or trailing zero(\(s\)) in a number with a decimal point are significant.
Which of the above statement(\(s\)) is/are correct?

1 Both I and II
2 Both II and III
3 Both I and III
4 I, II and III
PHXI02:UNITS AND MEASUREMENTS

367629 Which of the following numerical values have three significant figures?

1 \(0.030\)
2 \(3.033\)
3 \(30.30\)
4 \(0.300\)
PHXI02:UNITS AND MEASUREMENTS

367630 Two numbers \(a = 0.92\) and \(b = 0.08\) are given. The number of significant figures present in the result after the following operation \(a + b,\,\;a - b,\,\;a \times b\) and \(a/b\) respectively are

1 \(3,2,2,2{\rm{ }}\)
2 \(3,3,2,2{\rm{ }}\)
3 \(3,2,1,1{\rm{ }}\)
4 \(2,2,2,2{\rm{ }}\)
PHXI02:UNITS AND MEASUREMENTS

367631 Assertion :
Number of significant figures in 0.005 is one and that in 0.500 is three.
Reason :
Zeros are not significant figure.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXI02:UNITS AND MEASUREMENTS

367628 Consider the following rules of significant figures.
I.
All the non-zero digits are significant.
II.
All the zeros between two non-zero digits are significant.
III.
The terminal or trailing zero(\(s\)) in a number with a decimal point are significant.
Which of the above statement(\(s\)) is/are correct?

1 Both I and II
2 Both II and III
3 Both I and III
4 I, II and III
PHXI02:UNITS AND MEASUREMENTS

367629 Which of the following numerical values have three significant figures?

1 \(0.030\)
2 \(3.033\)
3 \(30.30\)
4 \(0.300\)
PHXI02:UNITS AND MEASUREMENTS

367630 Two numbers \(a = 0.92\) and \(b = 0.08\) are given. The number of significant figures present in the result after the following operation \(a + b,\,\;a - b,\,\;a \times b\) and \(a/b\) respectively are

1 \(3,2,2,2{\rm{ }}\)
2 \(3,3,2,2{\rm{ }}\)
3 \(3,2,1,1{\rm{ }}\)
4 \(2,2,2,2{\rm{ }}\)
PHXI02:UNITS AND MEASUREMENTS

367631 Assertion :
Number of significant figures in 0.005 is one and that in 0.500 is three.
Reason :
Zeros are not significant figure.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXI02:UNITS AND MEASUREMENTS

367628 Consider the following rules of significant figures.
I.
All the non-zero digits are significant.
II.
All the zeros between two non-zero digits are significant.
III.
The terminal or trailing zero(\(s\)) in a number with a decimal point are significant.
Which of the above statement(\(s\)) is/are correct?

1 Both I and II
2 Both II and III
3 Both I and III
4 I, II and III
PHXI02:UNITS AND MEASUREMENTS

367629 Which of the following numerical values have three significant figures?

1 \(0.030\)
2 \(3.033\)
3 \(30.30\)
4 \(0.300\)
PHXI02:UNITS AND MEASUREMENTS

367630 Two numbers \(a = 0.92\) and \(b = 0.08\) are given. The number of significant figures present in the result after the following operation \(a + b,\,\;a - b,\,\;a \times b\) and \(a/b\) respectively are

1 \(3,2,2,2{\rm{ }}\)
2 \(3,3,2,2{\rm{ }}\)
3 \(3,2,1,1{\rm{ }}\)
4 \(2,2,2,2{\rm{ }}\)
PHXI02:UNITS AND MEASUREMENTS

367631 Assertion :
Number of significant figures in 0.005 is one and that in 0.500 is three.
Reason :
Zeros are not significant figure.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXI02:UNITS AND MEASUREMENTS

367628 Consider the following rules of significant figures.
I.
All the non-zero digits are significant.
II.
All the zeros between two non-zero digits are significant.
III.
The terminal or trailing zero(\(s\)) in a number with a decimal point are significant.
Which of the above statement(\(s\)) is/are correct?

1 Both I and II
2 Both II and III
3 Both I and III
4 I, II and III
PHXI02:UNITS AND MEASUREMENTS

367629 Which of the following numerical values have three significant figures?

1 \(0.030\)
2 \(3.033\)
3 \(30.30\)
4 \(0.300\)
PHXI02:UNITS AND MEASUREMENTS

367630 Two numbers \(a = 0.92\) and \(b = 0.08\) are given. The number of significant figures present in the result after the following operation \(a + b,\,\;a - b,\,\;a \times b\) and \(a/b\) respectively are

1 \(3,2,2,2{\rm{ }}\)
2 \(3,3,2,2{\rm{ }}\)
3 \(3,2,1,1{\rm{ }}\)
4 \(2,2,2,2{\rm{ }}\)
PHXI02:UNITS AND MEASUREMENTS

367631 Assertion :
Number of significant figures in 0.005 is one and that in 0.500 is three.
Reason :
Zeros are not significant figure.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.