CSIR Physical Sciences: Questions 25 - 27 of 401

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Question number: 25

» Quantum Mechanics » Spin-Statistics Connection

Appeared in Year: 2013

MCQ▾

Question

In a basis in which the z – component Equation of the spin is diagonal, an electron is in a spin state,

Equation

The probability that a measurement of Equation will yield the value Equation and Equation are, respectively,

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 26

» Classical Mechanics » Periodic Motion » Normal Modes

Appeared in Year: 2013

MCQ▾

Question

The acceleration due to gravity g is determined by measuring the time period T and the length L of a simple pendulum. If the uncertainties in the measurements of T and L are Equation and Equation respectively, the fractional error Equation in measuring Equation is best approximated by, (June)

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 27

» Electromagnetic Theory » Gauge Invariance

Appeared in Year: 2013

MCQ▾

Question

The components of a vector potential Equation are given by,

Equation

Where k is a constant. The three component of the electric field are – (June)

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

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