Physics

Dimension analysis

The powers to which the fundamental units are elevated to obtain one unit of a physical quantity are called the dimensions of that quantity. While writing any dimension we will observe that it has two parts, the first part is a numerical value that expresses the magnitude of the dimension and the second part is […]

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Class 11, IIT JEE, Physical World and Measurement, Physics, SI units and fundamental quantities

Centre of Mass

Mass refers to the total quantity of matter in a physical body. It is distributed throughout a body and not located at a single point. However, to bring simplicity to physics calculations, it is assumed that all mass is concentrated at a single point within the body. If you can pinpoint the correct position within

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Class 11, IIT JEE, Physical World and Measurement, Physics, SI units and fundamental quantities

Working of a Moving Coil Galvanometer

A galvanometer is an electromechanical instrument used to measure electric current. Galvanometers were previously uncalibrated; however, we now have improvised versions of the same known as ammeters. We can measure the flow of current very precisely with the help of modern galvanometers. In a galvanometer, a deflecting pointer works in response to an electric current

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Class 11, Errors in measurement, IIT JEE, Physical World and Measurement, Physics

What Violates the Heisenberg Uncertainty Principle

The Heisenberg uncertainty principle states that it is impossible to simultaneously know the when and where of an event, without being able to understand the what. This means that you can’t be 100% sure about a particle’s momentum and position simultaneously. In quantum mechanics, it tells us that many things we perceive as solid objects

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Class 11, Errors in measurement, IIT JEE, Physical World and Measurement, Physics

What is Heisenberg’s Uncertainty Principle

Heisenberg’s principle of uncertainty, introduced in 1927, simply states that the more precisely we determine the position of any particle, the less precise we can determine its momentum from the given initial conditions. The Heisenberg uncertainty principle inherits from the theories of wave-like systems that state the matter wave nature of all the quantum objects.

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Class 11, Errors in measurement, IIT JEE, Physical World and Measurement, Physics

Vernier callipers-its uses for measurement

Introduction The vernier caliper is a measuring device used to calculate the internal and external diameters of the given object along with the height and depth of the specimen in a linear dimension manner. Pierre Vernier, a French mathematician, innovated vernier calipers to calculate the accurate measurement of the object linearly. The word caliper is

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Class 11, Errors in measurement, IIT JEE, Physical World and Measurement, Physics

Vernier callipers and screw gauge

Vernier Callipers The vernier calliper was invented in 1631 by Pierre Vernier of France as a tool for obtaining extremely precise linear measurements. It has two graduated scales: a primary scale that looks like a ruler and a specifically graduated auxiliary scale called the vernier that slides parallel to the main scale and allows readings

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Class 11, Errors in measurement, IIT JEE, Physical World and Measurement, Physics

Vernier calliper

A vernier calliper is a type of measuring instrument that is used to precisely determine linear measurements. In other words, it determines the length of a straight line between two places. However, because the measuring jaws may be fixed on either side of the circumference, it is an extremely helpful instrument for measuring the diameter

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Class 11, Errors in measurement, IIT JEE, Physical World and Measurement, Physics

Transducer and sensor

A transducer and a sensor are fundamentally different in that a transducer detects quality in one form and alters it to another, whereas a sensor observes fluctuations or adjustments in the environment and outputs the internal format. Identifying the Difference between a Transducer and a Sensor Transducer and sensor A transducer is an electrical device

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Class 11, Errors in measurement, IIT JEE, Physical World and Measurement, Physics

The Origin of the Uncertainty Principle

In day to day life, it is a straightforward matter to calculate the velocity and the position of a moving body of matter. A car travelling at 50 km/h will have covered a certain distance in a certain amount of time, and it will be easily observable. But in quantum systems where the movement being

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Class 11, Errors in measurement, IIT JEE, Physical World and Measurement, Physics