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Round up the following upto three significant figures: 34.216 - Chemistry

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प्रश्न

Round up the following upto three significant figures:

34.216

एक शब्द/वाक्यांश उत्तर

उत्तर

34.2

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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 - (i) | पृष्ठ २७

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संबंधित प्रश्‍न

How many significant figures are present in the 208?


Round up the following upto three significant figures:

10.4107


Round up the following upto three significant figures:

2808


How many significant figures should be present in the answer of the following calculation:-

`(0.02856 xx 298.15 xx 0.112)/0.5785`


The relative density of lead is 11.3. Its density is ______ g cm–3or ______ kg m–3.


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?


The length, breadth, and thickness of a rectangular sheet of metal are 4.234 m, 1.005 m, and 2.01 cm respectively. Give the area and volume of the sheet to correct significant figures.


State the number of significant figures in the following:

0.007 m2


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


Solve the numerical example.

A large ball 2 m in radius is made up of a rope of square cross-section with edge length 4 mm. Neglecting the air gaps in the ball, what is the total length of the rope to the nearest order of magnitude?


Which of the following has the highest number of significant figures?


Assertion (A): Significant figures for 0.200 is 3 where as for 200 it is 1.

Reason (R): Zero at the end or right of a number are significant provided they are not on the right side of the decimal point.


Taking into account of the significant figures, what is the value of 9.99 m – 0.0099 m?


The number of significant figures in 0.06900 is ______.


The sum of the numbers 436.32, 227.2 and 0.301 in appropriate significant figures is ______.


The mass and volume of a body are 4.237 g and 2.5 cm3, respectively. The density of the material of the body in correct significant figures is ______.


The numbers 2.745 and 2.735 on rounding off to 3 significant figures will give ______.


Why do we have different units for the same physical quantity?


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