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Bohr given a model for hydrogen molecule which is also applicable for some lighter atoms in which a one electron revolves around a stationary nucleus of positive charge Ze (known as hydrogen like atom)
Bohr's model is based on the following postulates.
(i) The electron can revolve only in particular discrete non-radiating orbits, named stationary orbits, for which total angular momentum of the revolving electrons is an integral multiple of
A simple inclined plane Join a spring balance to a toy car or roller skate and pull it up a slanting board (inclined plane). Note the force needed to move the car and compare i
A pure semiconductor is known as intrinsic semiconductor. It has thermally formed current carriers (i) They have four electrons in the outer part of orbit of atom and atoms are
It is an instrument used to view pure spectrum. It makes dispersion without deviation with the help of n crown prisms and (n - 1½ flint prisms alternately arranged in a tabular str
a) A charge of 3X10 -4 Coulomb at P (1, 2, 3) and a charge of -10 -4 Coulomb at N (2, 0, 5) in a vacuum. We desire to measure the force exerted on second charge beacuse of firs
Q What is photoelectric effect? Photoelectric release is the phenomena by which a good number of substances chiefly metals emit electrons under the influence of radiation such
A 400kVA transformer has a primary winding resistance of 0.5Ω and a secondary winding resistance of 0.001Ω . The iron loss is 2.5kW and the primary and secondary voltages are
Nuclear medicine imagining devices : Imagining ,or producing pictures of the distribution of the radioactivity is the most important aspect of nuclear medicine. Rectilinear s
I am stuck on how to do this assignment
A projectile is launched from zero height with an initial angle, θ, above the horizontal and with an initial velocity, vi. a. Show that the range of the projectile the distance
A pith ball weighing 3.0 x 10 -2 N carries a charge of -1.0 x 10 -6 C. The pith ball is placed among two large, parallel, metal plates that are divided by 0.050 m. What is
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