The diameter of a wire is measured to be $0.0205 \times 10^{-4} \,m$. The number of significant figures in the measurement is

  • A
    $3$
  • B
    $4$
  • C
    $5$
  • D
    $9$

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Similar Questions

Match the measurements given in List-$I$ with the number of significant figures given in List-$II$.
$A$. $74.083$$I$. $3$
$B$. $0.029$$II$. $4$
$C$. $0.002407$$III$. $2$
$D$. $2.74 \times 10^7$$IV$. $5$

The correct answer is:

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

The number of significant figures in $23.023$,$0.0003$,and $2.1 \times 10^{-3}$ are respectively:

"Trailing zeros in a number without a decimal point are not significant." Show that this statement is not always true.

The radius of a disc is $1.2 \; cm$. Its area according to the concept of significant figures will be given by

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