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How many significant figures are present in the 0.0025?

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प्रश्न

How many significant figures are present in the 0.0025?

एका वाक्यात उत्तर
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उत्तर

0.0025 - There are 2 significant figures.

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पाठ 1: Some Basic Concepts of Chemistry - EXERCISES [पृष्ठ २६]

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एनसीईआरटी Chemistry - Part 1 and 2 [English] Class 11
पाठ 1 Some Basic Concepts of Chemistry
EXERCISES | Q 1.19 - (i) | पृष्ठ २६

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संबंधित प्रश्‍न

What do you mean by significant figures?


How many significant figures are present in the 2.0034?


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34.216


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The photograph of a house occupies an area of 1.75 cm2on a 35 mm slide. The slide is projected on to a screen, and the area of the house on the screen is 1.55 m2. What is the linear magnification of the projector-screen arrangement?


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.


The mass of a box measured by a grocer’s balance is 2.300 kg. Two gold pieces of masses 20.15 g and 20.17 g are added to the box. What is

  1. What is the total mass of the box?
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State the number of significant figures in the following:

0.007 m2


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6.032 N m–2


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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 a short note on the following.

Rounding - off


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


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Which of the following numbers has 4 significant figures?


Which of the following statements is correct about significant figures and accuracy?


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