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A boy measured the area of a rectangle plot to be $466 {cm}^{2}$ . But the actual area of the plot has been recorded as $470 {cm}^{2}$ . Calculate the percent error of his measurement. [Write the answer up to two decimal places and in $%$ .]

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Important Questions on Significant Figures

EASY

Mathematics>Arithmetic>Significant Figures>Absolute Error and Relative Error

The distance

s

travelled by a particle in time

t

s = u t - \frac{1}{2} g t^{2}

. The initial velocity of the particle was measured to be

u = (1.11 \pm 0.01) m s^{- 1}

and the time interval of the experiment was

t = (1.01 \pm 0.1) s

. The acceleration was taken to be

g = (9.8 \pm 0.1) m s^{- 2}

. With these measurements, the student estimates the total distance travelled. How should the student report the result?

MEDIUM

Mathematics>Arithmetic>Significant Figures>Absolute Error and Relative Error

Define Analytical chemistry. Why is accurate measurement crucial in science?

HARD

Mathematics>Arithmetic>Significant Figures>Absolute Error and Relative Error

A boy measured the area of a rectangle plot to be

468 {cm}^{2}

. But the actual area of the plot has been recorded as

470 {cm}^{2}

. Calculate the percent error of his measurement. [Write the answer up to two decimal places and in

%

EASY

Mathematics>Arithmetic>Significant Figures>Absolute Error and Relative Error

Which are likely to be reduced when an experiment is repeated a number of times?

EASY

Mathematics>Arithmetic>Significant Figures>Absolute Error and Relative Error

There are a certain number of students in a class. This is approximated to the nearest hundreds. Approximate value is

600

and absolute error is

25

. If exact value is less than approximated value, then find the relative error. (Correct to two decimal places)

MEDIUM

Mathematics>Arithmetic>Significant Figures>Absolute Error and Relative Error

Mention the uses of graph in chemical analysis.

HARD

Mathematics>Arithmetic>Significant Figures>Absolute Error and Relative Error

A boy measured the area of a rectangle plot to be

450 {cm}^{2}

. But the actual area of the plot has been recorded as

454 {cm}^{2}

. Calculate the percent error of his measurement. [Write the answer up to two decimal places and in

%

MEDIUM

Mathematics>Arithmetic>Significant Figures>Absolute Error and Relative Error

Represent the union of two sets by Venn diagram for each of the following.

$X = {x | x$ is a prime number between $80$ and $100}$

$Y = {y | y$ is an odd number between $90$ and $100}$

HARD

Mathematics>Arithmetic>Significant Figures>Absolute Error and Relative Error

In an experiment, sodium chloride is dissolved in water at different temperatures, and the maximum amounts of sodium chloride dissolved in water as a function of temperature are tabulated in the given table. Represent the experimental results using a graph.

Trial number	Temperature $(^{°} C)$	Solubility ( $g NaCl / 100 g$ water)
$1$	$0.00$	$35.2$
$2$	$20.0$	$36.1$
$3$	$40.0$	$37.0$
$4$	$60.0$	$37.7$
$5$	$80.0$	$38.4$
$6$	$100.0$	$39.0$

MEDIUM

Mathematics>Arithmetic>Significant Figures>Absolute Error and Relative Error

Describe the importance of analytical chemistry in our life.

EASY

Mathematics>Arithmetic>Significant Figures>Absolute Error and Relative Error

Analytical chemistry plays an enormous role in our society.

EASY

Mathematics>Arithmetic>Significant Figures>Absolute Error and Relative Error

There are a certain number of students in a class. This is approximated to the nearest hundreds. Approximate value is

600

and absolute error is

25

. If exact value is more than approximated value, then find the relative error. (Correct to two decimal places)

HARD

Mathematics>Arithmetic>Significant Figures>Absolute Error and Relative Error

What are dependent and independent variables in a graph used for chemical analysis?

EASY

Mathematics>Arithmetic>Significant Figures>Absolute Error and Relative Error

Find the absolute and relative errors. The actual value is

252.14 mm

and the measured value is

250.02 mm

MEDIUM

Mathematics>Arithmetic>Significant Figures>Absolute Error and Relative Error

When two properties of a system are mathematically related to each other, the relation can be deduced by

MEDIUM

Mathematics>Arithmetic>Significant Figures>Absolute Error and Relative Error

Explain the importance of analytical chemistry in the field of medicine.

EASY

Mathematics>Arithmetic>Significant Figures>Absolute Error and Relative Error

Which experimental procedure is most likely to lead to a large systematic error?

EASY

Mathematics>Arithmetic>Significant Figures>Absolute Error and Relative Error

Cotyledons are also called-

EASY

Mathematics>Arithmetic>Significant Figures>Absolute Error and Relative Error

Match the following:

$i$ .	Biological systems	$a$ .	EDTA
$ii$ .	Analytical chemistry	$b$ .	cis-platin
$iii$ .	Medicinal chemistry	$c$ .	Haemoglobin

HARD

Mathematics>Arithmetic>Significant Figures>Absolute Error and Relative Error

Brief about the construction of a graph used in chemical analysis.

A boy measured the area of a rectangle plot to be 466 cm2. But the actual area of the plot has been recorded as 470 cm2. Calculate the percent error of his measurement. [Write the answer up to two decimal places and in %.]

Important Questions on Significant Figures

Learn and Prepare for any exam you want !

A boy measured the area of a rectangle plot to be $466 {cm}^{2}$ . But the actual area of the plot has been recorded as $470 {cm}^{2}$ . Calculate the percent error of his measurement. [Write the answer up to two decimal places and in $%$ .]