CSIR Physical Sciences: Questions 270 - 272 of 401

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Question number: 270

» Quantum Mechanics » Wave-Function in Momentum Representations

Appeared in Year: 2013

MCQ▾

Question

If Equation denotes the eigenfunction of the Hamiltonian with a potential Equation , then the expectation value of the operator Equation and Equation in the state Equation is – (June – 2013)

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 271

» Condensed Matter Physics » Drude Model of Electrical and Thermal Conductivity

Appeared in Year: 2013

MCQ▾

Question

Using the frequency dependent Drude formula, what is the effective kinetic inductance of a metallic wire that is to be used as a transmission line? [In the following, the electron mass is Equation , density of electrons is Equation , and the length and cross – sectional area of the wire are Equation and A respectively. ] (June)

Choices

Choice (4) Response

a.

Equation

b.

Zero

c.

Equation

d.

Equation

Question number: 272

» Nuclear and Particle Physics » Mesons

Appeared in Year: 2013

MCQ▾

Question

Muons are produced through the annihilation of particle Equation and its antiparticle, namely the process, Equation A muon has a rest mass of Equation and its proper life time is Equation . If the center of mass energy of the collision is Equation in the laboratory frame that coincides with the center – of – mass frame, then the fraction of muons that will decay before they reach a detector placed 6 km away from the interaction point is – (June)

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

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