Accuracy and precision with example and differences

We often hear the two words accuracy and precision during the measurement of a physical quantity in an experiment. Most of the students feel that these two terms have the same meaning. But these are much different to each other. In this article, we are going to discuss the concepts and difference between accuracy and … Read more

How to get volume from density and mass? formula

How to get volume from density and mass? One cannot get the volume of a substance from only the density of the substance. The mass of the substance is also required to know. Because there is a relation between the density, volume and mass of a substance as Volume = mass × density. If m … Read more

Rules to find the number of significant figures

Suppose you have calculated a value and the calculator is showing the value as 10.333333….Now, what will you write to express the number? Up to what decimal number will you take the data? To know this, we need the concept of significant digits. Significant figures or significant digits are very important in measurements to write … Read more