GATE (Graduate Aptitude Test in Engineering) Physics: Questions 546 - 550 of 659

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Question 546

Appeared in Year: 2007

Question

MCQ▾

A vector field is defined everywhere as . The net flux of associated with a cube of side , with one vertex at the origin and sides along the positive and axes, is –

Choices

Choice (4)Response

a.

b.

c.

d.

Question 547

Appeared in Year: 2008

Question

MCQ▾

The value of is –

Choices

Choice (4)Response

a.

b.

0

c.

d.

Question 548

Appeared in Year: 2008

Question

MCQ▾

An analog voltage is converted into bit binary number. The minimum number of comparators required and their reference voltage are –

Choices

Choice (4)Response

a.

b.

c.

d.

Question 549

Appeared in Year: 2008

Question

MCQ▾

A system containing non – interacting localized particles of spin and magnetic moment each is kept in constant external magnetic field and in thermal equilibrium at temperature . The magnetization of the system is –

Choices

Choice (4)Response

a.

b.

c.

d.

Question 550

Appeared in Year: 2007

Question

MCQ▾

A piece of paraffin is placed in a uniform magnetic field . The sample contains hydrogen nuclei of mass which interact only with external magnetic field. An additional oscillating magnetic field is applied to observe resonance absorption. If is the factor of the hydrogen nucleus, the frequency, at which resonance absorption takes place, is given by –

Choices

Choice (4)Response

a.

b.

c.

d.

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