The order of magnitude of the speed of light in $SI$ units is ........
- A$16$
- B$8$
- C$4$
- D$7$
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Similar Questions
If a calculated value $2.7465 \,g$ contains only three significant figures,the two insignificant digits in it are ............
Medium
View Solution$A$ piece of length $3.532 \ m$ is cut from a rod of length $43.4 \ m$. The length of the remaining rod in metre is (up to correct significant figures)
Round off the value $2.845$ to three significant figures.
Easy
View SolutionWhich of the following measurements of length is the most precise? Why?
$(i) \ 2.0 \ cm$
$(ii) \ 2.00 \ cm$
$(iii) \ 2.000 \ cm$
$(i) \ 2.0 \ cm$
$(ii) \ 2.00 \ cm$
$(iii) \ 2.000 \ cm$
Easy
View SolutionMatch the number of significant figures in the given column:
Column-$I$ Column-$II$ $(a)$ $0.007\ m^2$ $(p)$ $2$ $(b)$ $2.64 \times 10^{24}\ kg$ $(q)$ $1$ $(c)$ $0.0021\ g\ cm^{-3}$ $(r)$ $4$ $(d)$ $0.0006032\ J$ $(s)$ $3$
| Column-$I$ | Column-$II$ |
|---|---|
| $(a)$ $0.007\ m^2$ | $(p)$ $2$ |
| $(b)$ $2.64 \times 10^{24}\ kg$ | $(q)$ $1$ |
| $(c)$ $0.0021\ g\ cm^{-3}$ | $(r)$ $4$ |
| $(d)$ $0.0006032\ J$ | $(s)$ $3$ |
Easy
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