Advertisements
Advertisements
Question
How many significant figures should be present in the answer of the following calculations?
`(2.5 xx 1.25 xx 3.5)/2.01`
Advertisements
Solution
| Number | Significant figures |
| 2.5 | 2 |
| 1.25 | 3 |
| 3.5 | 2 |
| 2.01 | 3 |
Thus, in the calculation `[(2.5 xx 1.25 xx 3.5)/201]` involving multiplication and division, the number of significant figures will be 2. Since the least number of significant figures from the given figures is 2 (in 2.5 and 3.5) the result should not have more than two significant figures.
APPEARS IN
RELATED QUESTIONS
How many significant figures are present in the 5005?
Round up the following upto three significant figures:
10.4107
Round up the following upto three significant figures:
2808
How many significant figures should be present in the answer of the following calculation?
5 × 5.364
A screw gauge has a pitch of 1.0 mm and 200 divisions on the circular scale. Do you think it is possible to increase the accuracy of the screw gauge arbitrarily by increasing the number of divisions on the circular scale?
The mean diameter of a thin brass rod is to be measured by vernier callipers. Why is a set of 100 measurements of the diameter expected to yield a more reliable estimate than a set of 5 measurements only?
It is a well known fact that during a total solar eclipse the disk of the moon almost completely covers the disk of the Sun. From this fact and from the information you can gather from examples 2.3 and 2.4, determine the approximate diameter of the moon.
State the number of significant figures in the following:
2.64 × 1024 kg
Describe what is meant by significant figures.
Which of the following has the highest number of significant figures?
Write the rules for determining significant figures.
Taking into account of the significant figures, what is the value of 9.99 m – 0.0099 m?
Calculate the length of the arc of a circle of radius 31.0 cm which subtends an angle of `pi/6` at the centre.
Using the rules for significant figures, the correct answer for the expression `(0.02858 xx 0.112)/(0.5702)` will be ______.
How many significant figures are present in the measurement 2007 grams?
Which of the following measurements contains exactly two significant figures?
How many significant figures are there in the number 0.001405?
Which of the following numbers has 4 significant figures?
The radius of Earth is expressed as 0.64 × 10⁷ m in scientific notation. What is its order of magnitude and number of significant figures?
