Q 11-01-018NEETNEET 2020Top questionEasy
Taking into account of the significant figures, what is the value of $9.99$ m $- 0.0099$ m ?
Answer: (B) $9.98$ m
$9.99 - 0.0099 = 9.9801$ m.
In subtraction, the result keeps as many decimal places as the least precise number. $9.99$ has two decimal places, so the answer is $9.98$ m.
Solution by Sreeraj P, M.Sc Physics