SSC MTS EXAM

SSC

PHYSICS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Solve and round accordingly. “3.2 x 4.0 x 12.399”
A
160
B
158.707
C
16
D
158.71
Explanation: 

Detailed explanation-1: -0.037 contains 2 significant figures and 3 decimals. 0.037 rounded to 1 sig figs is 0.0. To count the number of sig figs in 0.037, strip the leading insignificant digits (0.0) to get the significant digits (37).

Detailed explanation-2: -Answer. Answer: 126 to 2 significant figures is 100.

Detailed explanation-3: -Those digits which are non-zero are significant. If any zero precedes the non-zero digit then it is not significant. If there is a zero between two non-zero digits then it is also a significant figure. More items

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