GATE (Graduate Aptitude Test in Engineering) Physics: Questions 83 - 87 of 659

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Question 83

Type-I and Type-II Superconductors

Appeared in Year: 2015

Question

MCQ▾

Which one of the following represents the electron occupancy for a superconductor in its normal and superconducting states?

Choices

Choice (4)Response

a.

The Electron Occupancy: Choice A

b.

The Electron Occupancy: Choice B

c.

The Electron Occupancy: Choice C

d.

The Electron Occupancy: Choice D

Question 84

Appeared in Year: 2014

Write in Short

Short Answer▾

Neutrons moving with speed are used for the determination of crystal structure. If the Bragg angle for the first order diffraction is , the interplanar spacing of the crystal is .

(Given: )

Question 85

Appeared in Year: 2014

Question

MCQ▾

In an interference pattern formed by two coherent sources, the maximum and the minimum of the intensities are and , respectively. The intensities of the individual waves are –

Choices

Choice (4)Response

a.

b.

c.

d.

Question 86

Appeared in Year: 2015

Write in Short

Short Answer▾

In the simple current source shown in the figure, and are identical transistors with current gain and .

Current Mirror Circuit

The current is ________ (upto two decimal places)

Question 87

Appeared in Year: 2015

Question

MCQ▾

The Heaviside function is defined as,

And its Fourier transform is given by . The Fourier transform of, is –

Choices

Choice (4)Response

a.

b.

c.

d.

0

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