GATE (Graduate Aptitude Test in Engineering) Physics (PE): Questions 5 - 8 of 1823

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Question 5

Appeared in Year: 2013

Question MCQ▾

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)

Choices

Choice (4)Response

a.

b.

c.

d.

Edit

Question 6

Appeared in Year: 2013

Question MCQ▾

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)

Choices

Choice (4)Response

a.

b.

c.

d.

Edit

Question 7

Appeared in Year: 2013

Question MCQ▾

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

Choices

Choice (4)Response

a.

b.

c.

d.

Edit

Question 8

Appeared in Year: 2013

Question MCQ▾

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)

Choices

Choice (4)Response

a.

b.

c.

d.

0

Edit