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Describe power of a lens. Write its SI unit. What do you mean by linear magnification produced by a lens in a direction perpendicular to its axis? Write down the mathematical expression for equivalent focal length of coaxial combination of two thin lenses separated by a finite distance and illustrate the terms.
Does CPH mass increase? Answer; Never, mass of CPH is constant, as like its speed.
after formation of bond where does electron rotate
Q. Define: ampere in terms of force Ampere is defined as that steady current which when flowing through two parallel infinitely long straight conductors of negligible cross se
uses of diode
An atom which has lost one electron would be: (1) Negatively charged () Positively charged (3) Electrically neutral (4) Carry double positive charge Ans: Elec
In an electric field a charge (Q) experiences a force F = QE. If charge is positive then force is directed in the direction of field whereas if charge is negative force acts on i
Explain Constant current system Constant current system : - In this process, the charging current is kept constant by varying the supply voltage to overcome the enhanced back
what is electic field
An a.c. voltage E = E 0 sin cot is applied across an inductor L. Get an expression for current I. Draw a labelled diagram of Van de Graff generator. Verify its principle of wor
The process of apparent change in frequency (or wavelength) of the light because of relative motion among the source of light and the observer is known as Doppler's effect.
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