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Can you explain Doppler effect? Find a mathematical expression for the apparent frequency heard when the source is in motion and the listener is at rest and also give limitation of
A vernier callipers gives with an auxiliary (or vernier) scale in addition to the major measurement scale. The vernier scale may be slide with the main scale. The vernier scale is
Echo vs. Reverberation Sound is a mechanical wave that travels by a medium from a single location to other. This motion by a medium occurs as one particle of the medium interac
A transistor is a semiconductor device used to amplify and switch electronic signals and electrical power. It is composed of semiconductor material with at least 3 terminals for co
An electric bulb is rated 220 V and 100 W.When it is operated on 110 V, the power consumed will be. Ans) P=V*I I will be same in both cases so P1=V1*I P2=V2*I Dividing both equati
Functions of the commutator: A commutator is a device, which under certain conditions changes ac into dc and vice versa. The commutator is a form of rotating switch placed
What is the difference between the Atomic Theory and the Kinetic Theory? Atomic theory is all about structure of an atom, i.e., its composition. Like an atom in general is made
A truck engine mass 5000kg is pulling a trailer mass 1000kg along a level track at an acceleration of 0.01.Resistance are 10N per 1000for the engine 5N per 1000kg for the trailer.
impure and pure spectrum
Write the mathematical relation for the resistivity of a material in terms of relaxation time, number density and mass and charge of charge carriers in it. Describe, using this rel
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