PH Physics Section 1: Mathematical Physics Vector Calculus: Linear vector space: basis, orthogonality and completeness; matrices; similarity transformations, diagonalization, eigen values and eigen vectors; linear differential equations: second order linear differential equations and solutions involving special functions; complex analysis: Cauchy-Riemann conditions, Cauchy’s theorem, singularities, residue theorem and applications; Laplace transform, Fourier analysis; elementary ideas about […]

UPSC Syllabus: Preliminary Examination: Current events of national and international importance Mains Examination: GS-II: International Relations Importance of News and its relevancy The number of undocumented Indians crossing over from Canada to the US on foot has reached an all-time high.This spike has placed Canada’s visa screening process under the lens — more so, due […]

Introduction AC is defined as alternating current due to bidirectional flow and representing by Sinusoidal current because of sine function . we just giving few important questions related to ac .1 In a light bulb connected to an ac source the instantaneous current is zero two times in each cycle of the current. Why does […]