According to the significant figure convention, the result obtained by adding $12.11$, $18.0$, and $1.012$ is:
- A$31.12$
- B$31.1$
- C$31$
- D$31.122$
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Similar Questions
Match the units in Column-$A$ with their equivalent values in Column-$B$ and select the correct option:
Column-$A$
Column-$B$
$1$. Femtometer
$(P)$. $10^{-3} \ \mu m$
$2$. Picometer
$(Q)$. $10^{-3} \ mm$
$3$. Nanometer
$(R)$. $10^{-3} \ pm$
$4$. Micrometer
$(S)$. $10^{-3} \ cm$
$(W)$. $10^{-3} \ nm$
| Column-$A$ | Column-$B$ |
| $1$. Femtometer | $(P)$. $10^{-3} \ \mu m$ |
| $2$. Picometer | $(Q)$. $10^{-3} \ mm$ |
| $3$. Nanometer | $(R)$. $10^{-3} \ pm$ |
| $4$. Micrometer | $(S)$. $10^{-3} \ cm$ |
| $(W)$. $10^{-3} \ nm$ |
Easy
View SolutionPressure is determined as force per unit area of the surface. The $SI$ unit of pressure, Pascal is as shown below:
$1 \, Pa = 1 \, N \, m^{-2}$
If mass of air at sea level is $1034 \, g \, cm^{-2}$, calculate the pressure in Pascal.
$1 \, Pa = 1 \, N \, m^{-2}$
If mass of air at sea level is $1034 \, g \, cm^{-2}$, calculate the pressure in Pascal.
Difficult
View SolutionDefine Mass and Weight.
Difficult
View SolutionThe incorrect rule regarding the determination of significant figures is
$1 \, \mu g = ........ \, mg$
Easy
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