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

MCQ▾

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

MCQ▾

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

MCQ▾

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)

Circuit diagram consist of R and C

Circuit Diagram Consist of R and C

In figure the insulating resistance R of an insulated cable is measured by connecting it in parallel with a capacitor C, a voltmeter and battery B.

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Question number: 8

» Classical Mechanics » Poisson Brackets

Appeared in Year: 2013

MCQ▾

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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