CSIR (Council of Scientific & Industrial Research) Physical Sciences: Questions 5  8 of 463
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Question number: 5
» Atomic & Molecular Physics » Width of Spectrum Lines
Appeared in Year: 2013
Question
Two monochromatic source, , emit light at 600 and 700 nm, respectively. If their frequency bandwidths are and GHz, respectively, then the ratio of line width of to is approximately – (December)
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Question number: 6
» Mathematical Methods of Physics » Linear Ordinary Differential Equations of First & Second Order
Appeared in Year: 2013
Question
A planet of mass m and an angular momentum L moves in a circular orbit in a potential, , where k is a constant. If it is slightly perturbed radially, the angular frequency of radial oscillation is – (June)
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Question number: 7
» Electronics and Experimental Methods » Digital Techniques and Applications » Registers
Appeared in Year: 2013
Question
The insulation resistance R of an insulated cable is measured by connecting it in parallel with a capacitor C, a voltmeter, and battery B as shown. The voltage across the cable dropped from 150 V to 15 V, 1000 seconds after the switch S is then its insulation resistance is approximately, (June)
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Question number: 8
» Classical Mechanics » Poisson Brackets
Appeared in Year: 2013
Question
Let A, B and C be function of phase space variables (coordinates and momenta of a mechanical system). If {, } represents the Poisson bracket, the value of is given by – (December)
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d.  0 
