Quantum Mechanics (CSIR (Council of Scientific & Industrial Research) Physical Sciences): Questions 39 - 41 of 80

Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 463 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. View Sample Explanation or View Features.

Rs. 300.00 or

Question number: 39

» Quantum Mechanics » Spin-Statistics Connection

Appeared in Year: 2014

MCQ▾

Question

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

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 40

» 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 Let and at a given instant. In the next instant, each S value can change to with probability . The probability that remains unchanged is – (June – 2013)

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 41

» Quantum Mechanics » Elementary Theory of Scattering » Phase Shifts

Appeared in Year: 2014

MCQ▾

Question

A double slit interference experiment uses a laser emitting light of two adjacent frequencies and . The minimum path difference between the interfering beams for which the interference pattern disappears is – (June -2014)

Choices

Choice (4) Response

a.

b.

c.

d.

f Page
Sign In