Physics-Significant Figures
NEET Physics Significant Figures MCQ Question
Type: MCQ-numerical-Easy-Class 11
If the mass of an object is measured as 6.35 g with three significant figures and its volume is recorded as 1.257 cm³ with four significant figures, what is the density of the object rounded to the correct number of significant figures?
A
5.05 g/cm³
B
5.048 g/cm³
C
5.0467 g/cm³
D
5.04567 g/cm³
Correct Answer
Option A
Detailed Explanation
The density should be rounded to the same number of significant figures as the measurement with the least significant figures, which is 3 in this case. So, 6.35 g / 1.257 cm³ = 5.054 g/cm³, rounded to 3 significant figures, is 5.05 g/cm³.
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