Science > Physics > Units and Measurements > Propagation of Errors In this article, we shall study the propagation of errors in different mathematical operations. Propagation of Errors in Addition: Suppose a result x is obtained by addition of two quantities say a and b i.e. x = a + b Let Δ a and […]
Science > Physics > Units and Measurements > Errors and Their Types In this article, we shall study errors, their types, and terminology of errors. An error is defined as the difference between the actual or true value and the measured value. An error should not be confused with a mistake, the mistake can be […]
Science > Physics > Units and Measurements > Significant Figures In this article, we shall study the concept of significant figures and order of magnitude. Significant Figures: The digits, whose values are accurately known in a particular measurement are called significant figures. The number expressing the magnitude of measurement should be recorded with only as […]
Science > Physics > Units and Measurements > Form of Physical Equation In this article, we shall study the use of principle of homogeneity to derive the form of the physical equation. Example – 01: The hydrostatic pressure P of a liquid column depends upon density (d) and height of liquid (h) and acceleration due […]
Science > Physics > Units and Measurements > More Problems on Dimensional Analysis Example – 01: Check the correctness of physical equation, s = ut +1/2at2, Where u is the initial velocity, v is the final velocity, a is the acceleration, s is the displacement and t is the time in which the change occurs. […]
Science > Physics > Units and Measurements > Applications of Dimensional Analysis In this article, we shall study the applications of dimensional analysis. Applications of Dimensional Analysis: To check the correctness of physical equation: To Find Dimensions of New Physical Quantity: To derive the form of a physical equation: To derive the relation between different […]
Science > Physics > Units and Measurements > Dimensions of Physical Quantities In this article, we shall study the concept of dimensions of physical quantities and to find dimensions of given physical quantity. Dimensions of Physical Quantity: The power to which fundamental units are raised in order to obtain the unit of a physical quantity […]
Science > Physics > Units and Measurements > Measurement of Time In this article, we shall study techniques of measurement of time. Time is the interval between two events. The study and science of time measurement is called chronometry or horology. Chronology, as opposed to chronometry, is the science of arranging events in their order or sequence […]
Science > Physics > Units and Measurements > Measurement of Density In this article, we shall study the measurement of the density of a substance. Eureka! Eureka! Archimedes was a Greek scientist. He lives in Syracuse nearly 200 years ago. The King of the land wanted to wear a Golden Crown. He gave some gold […]
Science > Physics > Units and Measurements > Measurement of Mass and Weight In previous articles, we have studied measurements of length, area, and volume by different methods. In this article, we shall study the measurement of mass and weight of a body. Measurement of Mass of a Body: Mass is a measure of matter […]