Physical World and Measurement

Dimensional Analysis

Dimensional analysis and its applications is the study of connections between physical variables using their units and dimensions of measurement. We utilise dimensional analysis to translate a unit between several forms. We must maintain the same unit to facilitate mathematical operations in science and mathematics.  Dimensional Analysis is often referred to as the factor label […]

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Class 11, IIT JEE, Physical World and Measurement, Physics, Units and dimensions

Applications of dimensional analysis:-

Dimensional analysis analyses the correlations between physical quantities based on fundamental properties such as length, mass, time, and electric current, as well as units of measure such as miles VS kilometres or pounds VS kilogrammes. To put it another way, we study two sorts of physical quantities in Physics: basic and derived. Mass, length, amount

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Class 11, IIT JEE, Physical World and Measurement, Physics, Units and dimensions

Angular Velocity and its Dimensional Formula

Angular velocity is defined as the disclossion of the physical measurements in terms of length, time and mass. Simply put, angular velocity is nothing but the rate of change of angular displacement (i.e., ⍵=  θ/T).  Dimensions – These are mathematical measurements for a particular quantity or measure. These give a simplified understanding of the quantity

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Class 11, IIT JEE, Physical World and Measurement, Physics, Units and dimensions

Angular Velocity and its Dimensional Formula

Angular velocity is defined as the disclossion of the physical measurements in terms of length, time and mass. Simply put, angular velocity is nothing but the rate of change of angular displacement (i.e., ⍵=  θ/T).  Dimensions – These are mathematical measurements for a particular quantity or measure. These give a simplified understanding of the quantity

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Class 11, IIT JEE, Physical World and Measurement, Physics, Units and dimensions

Vernier Callipers

Introduction A calliper is a tool for measuring the distance between two opposite surfaces of an item. It might be as basic as a compass with arrows pointing inside or outside. The calliper ends are positioned to fit across the positions to be measured, after which the calliper is withdrawn, and the distance between the

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Accuracy and precision, Class 11, IIT JEE, Physical World and Measurement, Physics

Precision of measuring instruments

Before learning about precision and accuracy, it’s necessary to understand the term “measurement”: – Measurement is necessary to comprehend the external world, and we have developed a sense of measurement over millions of years of life. Measures necessitate the use of tools that provide scientists with a numerical value. The issue here is that the

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Accuracy and precision, Class 11, IIT JEE, Physical World and Measurement, Physics

Least count and significant figures

Introduction When taking a measurement, it’s important to know the significant figures that make up a value. There is always a degree of uncertainty in any experimental results. The major values are the result of a predetermined way of compensating for errors in order to ensure accuracy in measurements and to obtain genuine data. Every

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Accuracy and precision, Class 11, IIT JEE, Physical World and Measurement, Physics

Least Count

In the science of measurement, the smallest and most precise value in a measured quantity that can be resolved on the instrument’s scale is referred to as the least count of the instrument. The accuracy of an instrument is connected to its least count value; an instrument that can measure smaller changes in a value

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Accuracy and precision, Class 11, IIT JEE, Physical World and Measurement, Physics

Heisenberg’s Uncertainty Principle Formula

Heisenberg’s uncertainty principle asserts that the more exactly the location is recognized, the further uncertain the momentum is, and vice versa, when the momentum is precisely known but the position is unknown. This is very different from what Newtonian Physics suggests. It asserts that given sufficient technology, all particle variables may be traced to an

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Accuracy and precision, Class 11, IIT JEE, Physical World and Measurement, Physics

Heisenberg’s Uncertainty Principle

Heisenberg suggested that it is impossible to calculate or measure any object’s exact position and momentum. Heisenberg’s uncertainty principle is based on the dual nature of wave particles. However, it is ignored in macroscopic measurements as the particles have a tiny mass. This eventually results in a released accuracy of their position accompanied by an

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Accuracy and precision, Class 11, IIT JEE, Physical World and Measurement, Physics