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In: Basics of Science

What is called a Gauge or caliper? Gauge and Caliper are inspection tools which are made for use without any scale or graduation mark. These are made of hardened steel and robust design and usedRead More →

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In: Basics of Science

What is a Vernier Caliper? Vernier Caliper is a precise measuring instrument by which precision measurements of length, thickness, depth and inside or outside diameters can be obtained quickly. Construction of Vernier Caliper A VernierRead More →

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In: Basics of Science

What is a Micrometer? A micrometer is an precision instrument used to measure the length or diameter of an object accurately up to . These measuring devices are made in many shapes and sizes dependingRead More →

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In: Basics of Science

What is called a Measurement? Measurement of a physical quantity is the process of comparing the quantity with a standard value of the quantity of same kind. The standard value is called its unit. ToRead More →

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In: Basics of Science

What is called Dimension of a quantity? All the derived physical quantities can be expressed in terms of some combination of symbolic representation of the seven fundamental or base quantities. These symbols are called dimensionsRead More →

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In: Basics of Science

What are called Physical quantities? A physical quantity is defined as that quantity which can be measured directly or indirectly by comparing it with standards or gauging with other measurable quantity. A Physical quantity mayRead More →

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In: Basics of Science

What are Standard Mathematical Relations for Physics? Math is an integral part of science. Without mathematical calculations, the study of science cannot be completed. In basic study of physics, chemistry or engineering topics, we needRead More →

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In: Gravitation

What is called an Elastic Collision? Collision is an event in which two moving bodies or one moving body and other stationary body collide (strike) with each other. In an elastic collision – Momentum isRead More →

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In: Machine Fundamentals

What is called Mechanical Advantage? Mechanical advantage of machine is defined as the ratio of load lifted at output end to the effort applied at the input end of the machine. Therefore, Mechanical Advantage isRead More →

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In: Vibrations

What is Harmonic Wave Equation? Propagation of a disturbance ( a wave ) which travel through a medium due to vibrations or oscillations of medium particles about their mean position is called a wave motion.Read More →

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In: Heat Energy

What is the First Law of Thermodynamics? First law of thermodynamics states that – If some heat is supplied to a system which is capable of doing work, then the quantity of heat absorbed byRead More →

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In: Magnetism

What is called Electromagnetic Induction? Electromagnetic induction is a phenomenon of production of electromotive force and thus a flow of electric current in a closed circuit caused by variation in magnetic field associated with theRead More →

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In: Static Electricity

What is called Gauss Law? Gauss law gives a relation between a charged body and its associated electric flux. This law states that – The total electric flux through any imaginary closed surface ( calledRead More →

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In: Vibrations

What is an Echo? Echo is a phenomenon of hearing of successive reflected sound waves after hearing the direct sound wave. It is associated with reflection of sound from distant reflecting surface such as highRead More →