CSIR Physical Sciences: Questions 174 - 176 of 389

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Question number: 174

» Mathematical Methods of Physics » Introductory Group Theory - SU(2) and O(3)

Appeared in Year: 2011

MCQ▾

Question

Which of the following matrices is an element of the group SU (2)?

(June)

Choices

Choice (4) Response
a.

(1101)

b.

(2+ii31+i)

c.

(12323212)

d.

(1+i313131i3)

Question number: 175

» Electromagnetic Theory » Electromagnetic Induction

Appeared in Year: 2014

MCQ▾

Question

A superconducting ring carries a steady current in the presence of a magnetic field B normal to the plane of the ring. Identify the incorrect statement. (December)

Choices

Choice (4) Response
a.

The current density J and B are related by the equation ×J+Λ2B=0, where Λ is a constant.

b.

The current and the magnetic field in the superconductor are time independent.

c.

The flux passing through the superconductor is quantized in unit of hce

d.

The superconductor shows an energy gap, which is proportional to the transition temperature of the superconductor.

Question number: 176

» Mathematical Methods of Physics » Vector Algebra and Vector Calculus

Appeared in Year: 2011

MCQ▾

Question

Let a and b be two distinct three – dimensional vectors. Then the component of b that is perpendicular to a is given by, - (June)

Choices

Choice (4) Response
a.

(ab)bb2

b.

a×(b×a)a2

c.

(ba)aa2

d.

b×(a×b)b2

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