IOSR-JAP   Volume-8 ~ Issue-1 ~ Jan-Feb 2016

ABSTRACT: The first order chemical reaction effects on transient free convective flow of a viscous incompressible flow past a vertical plate with mass transfer in the presence of magnetic field is considered. Solutions of the governing equations are obtained by the Laplace transform method and are presented graphically for the different values of physical parameters. It is observed that magnetic field parameter and chemical reaction parameter influence the velocity and concentration profiles significantly. Key words: Chemical Reaction, Free Convection, MHD, Variable Temperature

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ABSTRACT: In recent years physics education research (PER) has gained lot of prominence in effective delivery and understanding of physics learning. Understanding students' prior belief in nuclear physics is a first step towards improving nuclear physics instructions. Hence development of research-based multiple-choice questions tests about Nuclear Physics is important for assessing student's difficulties and for evaluating curriculum and pedagogies to reduce the difficulties. Nuclear Physics is taught at the bachelor degree B.Sc.
programme and master degree M.Sc. level in all the colleges and universities of Himachal Pradesh. We explore the difficulties that the undergraduate B.Sc. and postgraduate M.Sc. students have with nuclear physics.

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ABSTRACT: Studies have shown that most planetary bodies, the sun and earth inclusive, are better described as oblate spheroids rather than spherical. In this paper, using the Golden Metric tensor, we derive the expression for the Riemannian Laplacian in Oblate Spheroidal coordinate systems by the method of tensor analysis. The derived expression for the Riemannian Laplacian in Oblate Spheroidal coordinate systems reduce to pure Newtonian Laplacian in the limit c0 and contains post-Newtonian correction terms of all orders c-2. The result obtained here opens the way for applications of the Riemannian Laplacian to all bodies in the Spheroidal coordinate system.
Keywords: Golden metric tensor, Riemannian Laplacian, Oblate Spheroidal coordinates Post-Newtonian correction

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