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Q. Give the basic assumptions made in free electron model of solid. OR Write down basic postulates of Sommerfield's free electron gas model. Show that the number of ene
Three inductive loads, each of resistance 4Ω and reactance 9Ω are linked in delta. When linked to a 3-phase supply the loads consume 1.2kW. Calculate (a) The power factor of
A blackhole is a region of spacetime from which gravity prevents anything, including light, from escaping. The theory of general relativity predicts that a sufficiently compact mas
Wave-particle duality: The principle of quantum mechanics that implies that light (and, indeed, all other subatomic particles) sometimes work as a wave, and sometime like a pa
Question As-per to the law of reflection the angle of reflection is equal to the angle of incidence. An angle is at all times an angular separation between two planes a direct
Q. An electron beam is accelerated through a potential difference of 104 volt. Find the de Broglie wavelength. λ = 12.27 A o / √V λ = 12.27 A o / √10 4 = 0.1227
As we know that"The electric potential at a certain point inside the electric field is defined as the amount of work done in bringing a unit positive test charge uniformly (without
Resolution of Forces by Calculation: One vector was resolved into two mutually perpendicular components. So if there are several vectors each can be resolved into two
an object moves along the x axis according -to the equation x(t)=(3t^2-2t+3)m .determine (a) the average speed b/n t=2sec and t=3sec,(b) the instantaneous speed at t= 2s and t=3s (
Why does a glass filled with water shatter when you run your finger along the rim of the glass? A piece of crystal stemware has a natural or resonant frequency that can be exc
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