Quantum Mechanics-Spin-Statistics Connection (CSIR (Council of Scientific & Industrial Research) Physical Sciences): Questions 7 - 9 of 12

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Question number: 7

» Quantum Mechanics » Spin-Statistics Connection

Appeared in Year: 2014

MCQ▾

Question

Let, Equation where Equation are the Pauli matrices. If Equation and Equation are two arbitrary constant vectors in three dimensions, the commutator Equation is equal to (in the following I is the identity matrix). (December)

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 8

» Quantum Mechanics » Spin-Statistics Connection

Appeared in Year: 2013

MCQ▾

Question

Consider three particles A, B and C each with an attribute S that can take two values Equation Let Equation and Equation at a given instant. In the next instant, each S value can change to Equation with probability Equation . The probability that Equation remains unchanged is – (June – 2013)

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 9

» Quantum Mechanics » Spin-Statistics Connection

Appeared in Year: 2013

MCQ▾

Question

A spin Equation particle A undergoes the decay, Equation

where it is know that B and C are also spin Equation particles. The complete set of allowed values of the spin of the particle D is – (June)

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

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