From the point of view of significant figures | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) In addition and subtraction,the result should be reported to the same number of decimal places as the measurement with the fewest decimal places.$

Vedclass · Accepted Answer

$(ii)$ only

Vedclass · Answer

(A) In addition and subtraction,the result should be reported to the same number of decimal places as the measurement with the fewest decimal places.$(i)\ 11.3 \ cm$ (one decimal place) $+ 4 \ cm$ (zero decimal places) $= 15 \ cm$. Thus,$(i)$ is incorrect.$(ii)\ 4.53 \ m$ (two decimal places) $- 1.2 \ m$ (one decimal place) $= 3.3 \ m$. Thus,$(ii)$ is correct.$(iii)\ 5.45 \ kg$ (two decimal places) $- 3.2 \ kg$ (one decimal place) $= 2.3 \ kg$. Thus,$(iii)$ is incorrect.$(iv)\ 84.8 \ cm$ (one decimal place) $+ 48.6 \ cm$ (one decimal place) $= 133.4 \ cm$. Thus,$(iv)$ is incorrect.Therefore,only $(ii)$ is correct.

From the point of view of significant figures,which of the following is/are correct?
$(i)\ 11.3 \ cm + 4 \ cm = 15.3 \ cm$
$(ii)\ 4.53 \ m - 1.2 \ m = 3.3 \ m$
$(iii)\ 5.45 \ kg - 3.2 \ kg = 2.25 \ kg$
$(iv)\ 84.8 \ cm + 48.6 \ cm = 133 \ cm$

Similar Questions

The area of a sheet of length $10.2 \,cm$ and width $6.8 \,cm$ expressed up to the proper number of significant figures is ......... $cm^2$.

The area of a square is $5.29\ cm^2$. The area of $7$ such squares taking into account the significant figures is ........... $cm^2$.

$A$ substance of mass $49.53 \ g$ occupies $1.5 \ cm^3$ of volume. The density of the substance (in $g \ cm^{-3}$) with the correct number of significant figures is:

An object of mass $m = 3.513 \ kg$ moves along the $x$-axis with a velocity of $5.00 \ ms^{-1}$. The magnitude of its momentum can be recorded as $...... \ kg \ ms^{-1}$.

The radius of a circle is $2.12 \ m$. Its area according to the rule of significant figures is ......... $m^2$.

Vedclass Test Series

Exam Paper Generator

Online Exam Module

From the point of view of significant figures,which of the following is/are correct?$(i)\ 11.3 \ cm + 4 \ cm = 15.3 \ cm$$(ii)\ 4.53 \ m - 1.2 \ m = 3.3 \ m$$(iii)\ 5.45 \ kg - 3.2 \ kg = 2.25 \ kg$$(iv)\ 84.8 \ cm + 48.6 \ cm = 133 \ cm$