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Subtract 2.5xx10^4 form 3.8xx10^5 with d...

Subtract `2.5xx10^4` form `3.8xx10^5` with due regard to significant figures.

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Verified by Experts

The correct Answer is:
`3.6xx10^5`
`3.81xx10^5 -2.5x10^4 =10^5(3.81 -0.25)`
`=3.56xx10^5`
Rounding off to one place of decimal,
difference `=3.6xx10^5`
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Significant figures in the meaured value of a physical quantity tell the number of digits in which we have confidence. Larger the number of significant figures obtained in a measurement, greater is the accuracy of measurement and vice-verse, In addition or subtraction, the number of decimal places in the result should equal the smallest number of decimal places in any term in the operation. In multiplication and division, the number of significant figures in the product or in the quatient is the same as the smallest number of significant figures in any of the factors. With the help of the compreshension given above, choose the most appropriate alternative for each of the following questions : Subtract 2.6 xx10^4 from 3.9 xx10^5 with due regard to significant figures

Subtract 2.5xx10^(4) "from" 3.9xx10^(5) with due regard to significant figures.

Subtract 2.5xx10^(6) "from" 4.0xx10^(4) with due regard to significant figures.

(a).Add 3.8 xx 10^(-6) to 4.2 xx 10^(-5) with due regard to significant figures. (b). Subtract 3.2 xx 10^(-6) from 4.7 xx 10^(-4) with regard to significant figures. ( c ). Subtract 1.5 xx 10^(3) from 4.8 xx 10^(4) with due regard to significant figures.

Subtract 2.5xx10^(-5)" from "8.0xx10^(-3) with regards to significant figure.

Substract 3.2 xx 10^(-6) from 4.7 xx 10^(-4) with due regard to significant figures.

With due regard to significant figures,the value of 46.7-10.04 is

The result after adding 3.8xx10^(-6) and 4.2xx10^(-5) with due regards to significant figures is

Significant figures in the measured value of a physical quantity tell the number of digits in which we have confidence. Larger the number of significant figures obtained in a measurement, greater is the accuracy of measurement and vice-verse, In addition or subtraction, the number of decimal places in the result should equal the smallest number of decimal places in any term in the operation. In multiplication and division, the number of significant figures in the product or in the quotient is the same as the smallest number of significant figures in any of the factors. With the help of the comprehension given above, choose the most appropriate alternative for each of the following questions : Add 3.8 xx10^(-6) to 4.2 x10^(-5) with due regard to significant figures

What is the value of (5.0 xx 10^(-6)(5.0xx10^(-8) with due regards to significant figures ?

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