The number of significant figures in the numb | vedclass

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Question

(B) For the number $4.8000 	imes 10^{4}$:In scientific notation,the power of $10$ does not contribute to the number of significant figures.The digits

Vedclass · Accepted Answer

$5$ and $7$

Vedclass · Answer

(B) For the number $4.8000 	imes 10^{4}$:In scientific notation,the power of $10$ does not contribute to the number of significant figures.The digits $4, 8, 0, 0, 0$ are all significant because trailing zeros after the decimal point are significant.Thus,there are $5$ significant figures.For the number $48000.50$:All non-zero digits are significant.Zeros between two non-zero digits are significant.Trailing zeros after the decimal point are also significant.Therefore,all digits $4, 8, 0, 0, 0, 5, 0$ are significant,totaling $7$ significant figures.

$A$. $74.083$	$I$. $3$
$B$. $0.029$	$II$. $4$
$C$. $0.002407$	$III$. $2$
$D$. $2.74 \times 10^7$	$IV$. $5$

The number of significant figures in the numbers $4.8000 \times 10^{4}$ and $48000.50$ are respectively

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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 result after adding $3.8 \times 10^{-6}$ and $4.2 \times 10^{-5}$ with due regard to significant figures is:

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