CSIR (Council of Scientific & Industrial Research) Physical Sciences: Questions 345  348 of 463
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Question number: 345
» Classical Mechanics » Rigid Body Dynamics  Moment of Inertia Tensor
Appeared in Year: 2011
Question
An annulus of mass M made of a material of uniform density has inner and outer radii ‘a’ and ‘b’ respectively. Its principal moment of inertia along the axis of symmetry perpendicular to the plane of the annulus is: (December)
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Choice (4)  Response  

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Question number: 346
» Atomic & Molecular Physics » Relativistic Corrections for Energy Levels of Hydrogen Atom
Appeared in Year: 2011
Question
The ratio of intensities of the and lines of sodium at high temperature – (December)
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Question number: 347
» Classical Mechanics » Special Theory of Relativity » MassEnergy Equivalence
Appeared in Year: 2011
Question
The minimum energy of an electron (the rest mass of which is 0.5 MeV) that can emit Cerenkov radiation while passing through water (of refractive index 1.5) is approximately – (December)
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Question number: 348
» Classical Mechanics » Symmetry
Question
The character table of , the group of symmetries of an equilateral triangle is given below,
















In the above denotes the three classes of , containing 1, 3 and 2 elements respectively, and are the characters of the three irreducible representations and of . The entries and in this table are, respectively –
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Choice (4)  Response  

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b. 


c. 


d. 

