GATE (Graduate Aptitude Test in Engineering) Electronics: Questions 641 - 644 of 1076

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Question 641

Polarization, Phase and Group Velocity

Appeared in Year: 2019 (UGC-NET)

Question

Assertion-Reason▾

Assertion(Ꭺ)

Brewster angle is the angle of incidence at which there is no reflection.

Reason(Ꭱ)

For parallel polarization, Brewster angle is given by following expression

Choices

Choice (4)Response

a.

Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ

b.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

c.

Both Ꭺ and Ꭱ are false

d.

Ꭺ is true but Ꭱ is false

Question 642

Appeared in Year: 2013 (UGC-NET)

Question

MCQ▾

An 8086 has how many number of flags? (September)

Choices

Choice (4)Response

a.

7

b.

9

c.

11

d.

5

Question 643

Question

MCQ▾

In an FET as is changed from zero to increasing reverse bias, the value of gm … ?

Choices

Choice (4)Response

a.

Increased

b.

Falls suddenly to zero

c.

Remains constant

d.

Decreased

Question 644

Filtering of Random Signals through LTI Systems

Appeared in Year: 2014 (UGC-NET)

Question

Match List-Ⅰ List-Ⅱ▾

Match the following lists: (June)

List-Ⅰ (Column-I)List-Ⅱ (Column-II)
(A)

Partition Noise

(i)

Resistance

(B)

Shot Noise

(ii)

Triode

(C)

Johnson Noise

(iii)

P-N junction

(D)

Current Noise

(iv)

Diode

Choices

Choice (4)Response
  • (A)
  • (B)
  • (C)
  • (D)

a.

  • (iii)
  • (ii)
  • (i)
  • (iv)

b.

  • (iii)
  • (ii)
  • (iv)
  • (i)

c.

  • (iii)
  • (i)
  • (ii)
  • (iv)

d.

  • (ii)
  • (iv)
  • (i)
  • (iii)

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