GATE (Graduate Aptitude Test in Engineering) Electronics: Questions 382 - 384 of 1076

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Question 382

Amplitude Modulation and Demodulation

Appeared in Year: 2018 (UGC-NET)

Question

Match List-Ⅰ List-Ⅱ▾

Match the two lists and choose the correct answer from the code given below: (December)

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

Envelope detector

(i)

Optical fiber

(B)

Foster seeley discriminator

(ii)

Microwave

(C)

APD detector

(iii)

FM signal

(D)

PIN detector

(iv)

AM wave

Choices

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

a.

  • (iv)
  • (ii)
  • (iii)
  • (i)

b.

  • (ii)
  • (iii)
  • (iv)
  • (i)

c.

  • (i)
  • (iii)
  • (iv)
  • (ii)

d.

  • (iv)
  • (iii)
  • (i)
  • (ii)

Question 383

Amplitude Modulation and Demodulation

Appeared in Year: 2018 (UGC-NET)

Question

Assertion-Reason▾

Assertion(Ꭺ)

Polarization preserving fibers have a special core design that maintains the state of polarization. (December)

Reason(Ꭱ)

In polarization preserving fibers, there is a stress applying part, which creates slow and fast axes in the core.

Choices

Choice (4)Response

a.

Ꭺ is false but Ꭱ is true

b.

Both Ꭺ and Ꭱ are false

c.

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

d.

Ꭺ is true but Ꭱ is false

Question 384

Appeared in Year: 2018 (UGC-NET)

Question

MCQ▾

Read the following statements regarding state variable analysis. (December)

i. A purely resistive network has no states at all.

ii. A purely resistive network has more states than a reactive network

iii. Only a reactive network can have states

iv. A network with energy storing elements has no states at all.

Which of the above statements are correct?

Choose the correct answer from the code given below:

Choices

Choice (4)Response

a.

(i) and (iv)

b.

(i) and (iii)

c.

(ii) and (iii)

d.

(ii) and (iv)

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