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definition off terminal velocity
What is the force required to accelerate a mass of one kilogram one meter per second per second? Basically, you have defined the Newton. Force is the vector product of mass
Explain how suppressor grid eliminates effect of secondary emission in pentode Ans: Suppressor grid is placed in between plate and screen grid. It's connected with the cathode
Explain about the term pumping in laser. Pumping in laser is particular criteria to get laser output. It is same to pumping well water to the ground level or to an overhead tan
What is the hall effect? Derive expression for it.
What is the work done to take a particle of mass m from surface of the earth to a height equal to 2R (R=radius of earth )? Ans) Initial PE= - GMm/R Final PE = - GMm/3R
Refractive Astronomical Telescope: It is an optical instrument which is used to see heavenly bodies such as stars, moon and planets is known as telescope. Astronomical teles
Draw a schematic diagram of a single optical fibre structure. Describe briefly how an optical fibre is fabricated. Explain in brief, the mechanism of propagation of light signal by
What do you mean by beats? Illustrate the importance of beats. What are applications of ‘Doppler Effect'?
Explain the absorption and emission transitions of A and B coefficients of Einstein. Assume that N 1 and N 2 be the number of atoms per unit volume along with energy E 1 and
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