Classical Mechanics (CSIR (Council of Scientific & Industrial Research) Physical Sciences): Questions 49  51 of 69
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Question number: 49
» 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: 50
» 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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Question number: 51
» Classical Mechanics » Special Theory of Relativity » Relativistic Kinematics
Appeared in Year: 2011
Question
Two gravitating bodies A and B with masses and , respectively, are moving I circular orbit. Assume that and let the radius of the orbit of body A be . If the body A is losing mass adiabatically, its orbital radius is proportional to –
(June)
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Choice (4)  Response  

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b. 


c. 


d. 

