Physical World Units and Measurements - Result Question 38
40. Taking into account of the significant figures, what is the value of $9.99 m-0.0099 m$ ?
[2020]
(a) $9.98 m$
(b) $9.980 m$
(c) $9.9 m$
(d) $9.9801 m$
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Answer:
Correct Answer: 40. (a)
Solution:
- (a) In subtraction the number of decimal places in the result should be equal to the number of decimal places of that term in the operation which contain lesser number of decimal places.
