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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
There are two parts of Thermionic emitters:- A) Directly heated emitter (i) Cathode is directly heated by passing current. (ii) Thermionic current is less. (iii) Ener
Illustrate Gibbs - Helmoltz equation. What are its applications? A Heat engine operating between temperatures 300 K and 500 K rejects 6 Kcal of heat to the sink. How much heat i
The Caesium Chloride Structure CsCl structure is basically a simple cubic lattice with 2 atom basis, where one atom is attached to the lattice point and the other at ( a/2 , a
if a 5-kg object experience a 10-n force for a 0.10-second, then what is momentum change of the object
A simple rotation machine Secure a breast-drill or hand- drill like as the one shown in the diagram. Clamp a small screw eye or cup hook in the chuck of the drill. Join a 30 cm
What type of material in optical fibres used? Material in optical fibres: Optical fibres are generally made along with two kinds of materials that are glass (silica) and pla
Distance of the earth from the moon and the sun is? The distance of the earth from the moon is 2,40,000 miles or24 x 104 miles and that from the sun is 93,000,000 or 93x106 mil
Its working is based on the principle of tangent law. It having of a small compass needle, pivoted at the centre of a circular box. The box is reserved in a wooden frame having two
what is meaning simulation laser produced plasma
Penetration power of proton is: (1)More than electron (2)Less than electron (3)More than neutron (4)None Ans:(2)Less than electron
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