Sound is everywhere around us, and it can be measured in order to inform and protect us, as some noises are dangerous. Loud noise, in fact, can be quite harmful to one’s hearing. Hearing loss can be caused by the degree of noise, the distance a person is from the noise (distance from the noise), […]
Understanding statistics is an essential part of learning Physics. All primary measurement techniques in Physics require Statistics in some form. It helps in resolving errors and improving the correctness of measurements. Correlation and covariance are two important aspects of statistics that help physicists determine relations. Covariance and correlation help us determine the effect of two
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Class 11, Errors in measurement, IIT JEE, Physical World and Measurement, PhysicsA galvanometer is an excellent device for detecting even the slightest electrical impulses in an electrical circuit. A coil is placed or rotated between the concave pole sides of a powerful laminated horseshoe magnet. The galvanometer displays the deflection whenever an electric charge is sent via the coil. The deflection is proportional to the amount
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Class 11, Errors in measurement, IIT JEE, Physical World and Measurement, PhysicsThere are various techniques to measure how closely your data values are grouped while working with data. The Mean deviation is the most common. Most individuals learn how to calculate using the Mean deviation calculator in school by adding all the data values together and dividing by the number of items in the set. However,
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Class 11, Errors in measurement, IIT JEE, Physical World and Measurement, PhysicsA light-year is a unit of distance rather than time (as the name might imply). A light-year is the distance travelled by a beam of light in a single Earth year, which is around 5.88 trillion miles (9.46 trillion kilometres) per year over interstellar space. Given the enormous numbers being addressed, calculating distances in miles
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Class 11, IIT JEE, Physical World and Measurement, Physics, Units and dimensionsDimensions represent physical values that could be measured, but units are subjective designations assigned to certain dimensions in order to make them related. A dimension, for example, is length, but a metre is a related unit which describes length. Units and dimensions are among the crucial topics to be learnt. Every unit for that similar dimension is
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Class 11, IIT JEE, Physical World and Measurement, Physics, Units and dimensionsUnits and Dimensions 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 method or
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Class 11, IIT JEE, Physical World and Measurement, Physics, Units and dimensionsIn this article, we will discuss the important concept of Mensuration. Mensuration is a branch of mathematics that deals with lengths of lines, surface area, and volume of solid figures. Figures such as square, rectangle, trapezium, and triangle lie entirely in the plane. These figures are known as plane figures and are in 2-dimensional form.
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Class 11, IIT JEE, Physical World and Measurement, Physics, Units and dimensionsWhat is the internet? To the younger generations who have grown up under its influence, the answer may appear simple, but defining it is not. The Internet, often known as the World Wide Web (www), is a global system of interconnected computer networks that connect to billions of devices all over the world using the
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Class 11, IIT JEE, Physical World and Measurement, Physics, Units and dimensionsA graph is a visual representation of data that has been categorized. It facilitates our understanding of the facts. The term “data” refers to a collection of numerical figures gathered through surveys. The word “data” is derived from the Latin word “Datum,” which means “given”. After the development of a research question, data is collected
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Class 11, IIT JEE, Physical World and Measurement, Physics, Units and dimensions