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A charge q of mass m starting from rest is allowed to move between two plates having a potential difference of V volt. Determine the final velocity of it?
Repulsion is the sure test of electrification than attraction. Why?
Write down the uses of capacitors?
explain the formation of energy band in intrinsic semiconductor
Q. What is fluorescence? When an atomic or else molecular system is excited into higher energy state by absorption of energy it returns back to lower energy state in a time les
For a blackbody, the frequency at which maximum energy is emitted is 3 x 10 13 Hz: A. Give a wavenumber for the wavelength of the infrared emission? B. What is the tempe
An object is thrown downward from a 150 cliff so that it makes an angle of 30 with the horizontal. (a) How fast will it be going when it hits the ground? (b) How long will it take
Q. Write down Schrodinger's wave equation for a particle in a three dimensional box. Solve it to get eigen functions and show that the eigen values are discrete. Ans. Fr
It is the product of either change in an electric dipole with the distance separating them.
1. What do you understand by diffraction of waves? Explain why the diffraction of sound is more easily observable than the diffraction of light? 2. The wavelength of two spectra
Wires A as well as wire B are both made out of copper. Wire B is double as long as wire A. The diameter of wire B is doubles that of wire A. Answer: Resistivity is a charac
Consider a circular loop in a magnetic field. The loop is made of elastic material with spring constant k. It carries a current I and has radius R when unstretched. We immerse it i
can electrons from an electron gun produce electricity
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