CSIR (Council of Scientific & Industrial Research) Physical Sciences: Questions 69 - 72 of 463

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Question number: 69

» Quantum Mechanics » Spin-Statistics Connection

Appeared in Year: 2013

MCQ▾

Question

A spinparticle is in the state in the eigen basis and . If we measure, the probabilities of getting and , respectively, are (December)

Choices

Choice (4) Response

a.

0 and 1

b.

c.

d.

Question number: 70

» Electronics and Experimental Methods » Operational Amplifiers

Appeared in Year: 2014

MCQ▾

Question

An op-amp based voltage follower – (June)

Choices

Choice (4) Response

a.

Is useful for converting a high impedance source into a low impedance source

b.

Has infinitely high closed loop gain.

c.

Is useful for converting a low impedance source into a high impedance source.

d.

Has infinitely high closed loop output impedance.

Question number: 71

» Electromagnetic Theory » Electrostatics: Gauss's Law and Its Applications

Appeared in Year: 2014

MCQ▾

Question

Consider an electromagnetic wave at the interface between two homogeneous dielectric media of dielectric constant and. Assuming and no charge on the surface, the electric field vector and the displacement vector in the two media satisfy the following inequalities – (June)

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 72

» Classical Mechanics » Periodic Motion » Small Oscillations

Appeared in Year: 2011

MCQ▾

Question

A point particle of mass carrying an electric charge is attached to a spring of stiffness constant. A constant electric field E along the direction of the spring is switched on for a time interval T. Neglecting radiation loss, the amplitude of oscillation after the field is switched off is: (December)

Choices

Choice (4) Response

a.

b.

c.

d.

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