Group Theory — CSIR Net PYQ (Question 1)

A Group Theory previous-year question (PYQ) from Mathematical Physics (CSIR Net). Read the question, check the correct answer, then practise the full topic.

Question 1 of 6 · 5.0 marks

The

2 \times 2

identity matrix

I

and the Pauli matrices

σ^{x}, σ^{y}, σ^{z}

do not form a group under matrix multiplication. The minimum number of

2 \times 2

matrices, which includes these four matrices, and form a group (under matrix multiplication) is

Correct answer: Option 4

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