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Round up the following upto three significant figures: 10.4107

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प्रश्न

Round up the following upto three significant figures:

10.4107

एक शब्द/वाक्यांश उत्तर
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उत्तर

10.4

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पाठ 1: Some Basic Concepts of Chemistry - EXERCISES [पृष्ठ २७]

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एनसीईआरटी Chemistry Part 1 and 2 [English] Class 11
पाठ 1 Some Basic Concepts of Chemistry
EXERCISES | Q 1.20 - (ii) | पृष्ठ २७

व्हिडिओ ट्यूटोरियलVIEW ALL [1]

संबंधित प्रश्‍न

What do you mean by significant figures?


How many significant figures are present in the 0.0025?


How many significant figures are present in the 208?


Round up the following upto three significant figures:

0.04597


Round up the following upto three significant figures:

2808


You are given a thread and a metre scale. How will you estimate the diameter of the thread?


A screw gauge has a pitch of 1.0 mm and 200 divisions on the circular scale. Do you think it is possible to increase the accuracy of the screw gauge arbitrarily by increasing the number of divisions on the circular scale?


A man walking briskly in rain with speed must slant his umbrella forward making an angle θ with the vertical. A student derives the following relation between θ and v: tan θ = v and checks that the relation has a correct limit: as v →0, θ → 0, as expected. (We are assuming there is no strong wind and that the rain falls vertically for a stationary man). Do you think this relation can be correct? If not, guess the correct relation.


A LASER is a source of very intense, monochromatic, and unidirectional beam of light. These properties of a laser light can be exploited to measure long distances. The distance of the Moon from the Earth has been already determined very precisely using a laser as a source of light. A laser light beamed at the Moon takes 2.56 s to return after reflection at the Moon’s surface. How much is the radius of the lunar orbit around the Earth?


State the number of significant figures in the following: 

6.032 N m–2


Just as precise measurements are necessary in science, it is equally important to be able to make rough estimates of quantities using rudimentary ideas and common observations. Think of ways by which you can estimate the following (where an estimate is difficult to obtain, try to get an upper bound on the quantity):-

the wind speed during a storm


Describe what is meant by significant figures.


How many significant figures should be present in the answer of the following calculations?

`(2.5 xx 1.25 xx 3.5)/2.01`


If the density of a solution is 3.12 g mL–1, the mass of 1.5 mL solution in significant figures is ______.


The length and breadth of a rectangular sheet are 16.2 cm and 10.1cm, respectively. The area of the sheet in appropriate significant figures and error is ______.


Using the rules for significant figures, the correct answer for the expression `(0.02858 xx 0.112)/(0.5702)` will be ______.


How many significant figures are present in the measurement 2007 grams?


The arithmetic mean of three measurements, 15.4 cm, 15.4 cm, and 15.5 cm, is 15.43 cm. How many significant figures does this result have?


How many significant figures are there in the number 0.001405?


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