CSIR Chemical Sciences: Questions 211 - 214 of 329

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Question number: 211

» Physical Chemistry » Principles of Quantum Mechanics » Operator Algebra

Appeared in Year: 2012

MCQ▾

Question

Value of commutotor [x,px2] is given by: (Dec)

Choices

Choice (4) Response

a.

2i

b.

2

c.

2ix

d.

2ipx

Question number: 212

» Physical Chemistry » Principles of Quantum Mechanics » Tunneling

Appeared in Year: 2011

MCQ▾

Question

For a certain particle encountering a barrier, the tunneling probability is approximately e10. If the mass is halved and width of barrier (Rectangular) doubled, approximate value of tunneling probability will be…. (June)

Choices

Choice (4) Response

a.

e102

b.

e10

c.

e202

d.

e102

Question number: 213

» Physical Chemistry » Principles of Quantum Mechanics » Harmonic Oscillator and the Hydrogen Atom

Appeared in Year: 2012

MCQ▾

Question

For any operator A and its adjoin A+, INCORRECT statement is (June)

Choices

Choice (4) Response

a.

AA+ is Hermitian

b.

AA+ + A+A is Hermitian

c.

A+A+ is Hermitian

d.

AA+ is Hermitian

Question number: 214

» Inorganic Chemistry » Nuclear Chemistry » Fission and Fusion

Appeared in Year: 2011

MCQ▾

Question

For a given nuclear fission reaction of 235U

92235U+01n56142Ba+3691K+301n

amount of energy (in KJ/mol) released during this process is (given 235U=235.amu,142Ba=141.91amu,91Kr=90,9234amu,01n=1.00866amu ) (June)

Choices

Choice (4) Response

a.

1.68×1010

b.

3.12×1012

c.

2.8×1011

d.

1.0×109

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