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Round up the following upto three significant figures: 2808 - Chemistry

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प्रश्न

Round up the following upto three significant figures:

2808

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उत्तर

2810

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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?


How many significant figures are present in the 126,000?


Round up the following upto three significant figures:

10.4107


Round up the following upto three significant figures:

0.04597


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?


State the number of significant figures in the following:

0.007 m2


State the number of significant figures in the following:

2.64 × 1024 kg


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?


Solve the numerical example.

Write down the number of significant figures in the following: 0.003 m2, 0.1250 gm cm-2, 6.4 x 106 m, 1.6 x 10-19 C, 9.1 x 10-31 kg.


Write the rules for determining 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`


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 ______.


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


The radius of Earth is written as 0.64 × 10⁷ m in scientific notation. What is its order of magnitude?


The radius of Earth is expressed as 0.64 × 10⁷ m in scientific notation. What is its order of magnitude and number of significant figures?


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