Solutions to Irodov's I.E. problems in general physics, Second Edition, Volume 2, Singh Abhay Kumar, 1998

Solutions to I.E. Irodov's problems in general physics, Second Edition, Volume 2, Singh Abhay Kumar, 1998.

   Science, in general, and physics, in particular, have evolved out of man’s quest to know beyond unknowns. Matter, radiation and their mutual interactions are basically studied in physics. Essentially, this is an experimental science. By observing appropriate phenomena in nature one arrives at a set of rules which goes to establish some basic fundamental concepts. Entire physics rests on them. Mere knowledge of them is however not enough. Ability to apply them to real day-to-day problems is required. Prof. Irodov’s book contains one such set of numerical exercises spread over a wide spectrum of physical disciplines. Some of the problems of the book long appeared to be notorious to pose serious challenges to students as well as to their teachers. This book by Prof. Singh on the solutions of problems of Irodov’s book, at the outset, seems to remove the sense of awe which at one time prevailed. Traditionally a difficult exercise to solve continues to draw the attention of concerned persons over a sufficiently long time. Once a logical solution for it becomes available, the difficulties associated with its solutions are forgotten very soon. This statement is not only valid for the solutions of simple physical problems but also to various physical phenomena.




Примеры.
If the hydromoter were in equlibrium or floating, its weight will be balanced by the buoyancy force acting on it by the fluid. During its small oscillation, let us locate the hydrometer when it is at a vertically downward distance x from its equilibrium position. Obviously the net unbalanced force on the hydrometer is the excess buoyancy force directed upward and equals пr2 x p g. Hence for the hydrometer.

During the vertical oscillation let us locate the block at a vertical down distance x from its equilibrium position. At this moment if x1 and x2 are the additional or further elongation of the upper & lower springs relative to the equilibrium position, then the net unbalanced force on the block will be k2 x2 directed in upward direction.

CONTENTS.
Preface.
PART FOUR OSCILLATIONS AND WAVES.
4.1. Mechanical Oscillations.
4.2. Electric Oscillations.
4.3. Elastic Waves. Acoustics.
4.4. Electromagnetic Waves. Radiation.
PART FIVE OPTICS.
5.1. Photometry and Geometrical Optics.
5.2. Interference of Light.
5.3. Diffraction of Light.
5.4. Polarization of Light.
5.5. Dispersion and Absorption of Light.
5.6. Optics of Moving Sources.
5.7. Thermal Radiation. Quantum Nature of Light.
PART SIX ATOMIC AND NUCLEAR PHYSICS.
6.1. Scattering of Particles. Rutherford-Bohr Atom.
6.2. Wave Properties of Particles. Schrodinger Equation.
6.3. Properties of Atoms. Spectra.
6.4. Molecules and Crystals.
6.5. Radioactivity.
6.6. Nuclear Reactions.
6.7. Elementary Particles.



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