GATE (Graduate Aptitude Test in Engineering) Physics: Questions 249 - 253 of 659

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Question 249

Appeared in Year: 2013

Question

MCQ▾

Consider a linear collection of independent spin particles, each at a fixed location. The entropy of this system is ( is the Boltzmann constant)

Choices

Choice (4)Response

a.

b.

Zero

c.

d.

Question 250

Edit

Appeared in Year: 2013

Write in Short

Short Answer▾

The number of distinct ways of placing four indistinguishable balls into five distinguishable boxes is ________.

Question 251

Appeared in Year: 2011

Question

MCQ▾

In the decay of neutron , the anti – neutrino escapes detection. Its existence is inferred from the measurement of

Choices

Choice (4)Response

a.

Angular distribution of electrons

b.

Forward – backward asymmetry of electrons

c.

Helicity distribution of electrons

d.

Energy distribution of electrons

Question 252

Appeared in Year: 2013

Write in Short

Short Answer▾

An channel junction field effect transistor has source to drain current at shorted gate and pinch off voltage . Calculate the drain current in for a gate – source voltage of . The answer should be up to two decimal places.

Question 253

Appeared in Year: 2011

Question

MCQ▾

Two matrices A and B are said to be similar if for some invertible matrix . Which of the following statement is not true?

Choices

Choice (4)Response

a.

b.

and have the same eigenvectors

c.

and have the same eigenvalues

d.

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