NTA-NET (Based on NTA-UGC) Electronic Science (Paper-II): Questions 89 - 91 of 124

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Question number: 89

» Networks and Theorems » Time and Frequency Domain Responses

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Appeared in Year: 2018

Match List-Ⅰ List-Ⅱ▾

Question

Match the following lists: (July)

List-Ⅰ (Column-I) List-Ⅱ (Column-II)

(A)

Image of f(t) Vs t (L Choice-2)

Image of F (T) vs T (L Choice-2)

Image of f (t) Vs t (L Choice-2)

(i)

Image of f(t) Vs t (R Choice-2)

Image of F (T) vs T (R Choice-2)

Image of f (t) Vs t (R Choice-2)

(B)

Image of f(t) Vs t (L Choice-1)

Image of F (T) vs T (L Choice-1)

Image of f (t) Vs t (L Choice-1)

(ii)

Image of f(t) Vs t (R Choice-1)

Image of F (T) vs T (R Choice-1)

Image of f (t) Vs t (R Choice-1)

(C)

Image of f(t) Vs t (L Choice-3)

Image of F (T) vs T (L Choice-3)

Image of f (t) Vs t (L Choice-3)

(iii)

Image of f(t) vs t (R Choice-3)

Image of F (T) vs T (R Choice-3)

Image of f (t) vs t (R Choice-3)

(D)

Image of f(t) Vs t (L Choice-4)

Image of F (T) vs T (L Choice-4)

Image of f (t) Vs t (L Choice-4)

(iv)

Image of f(t) vs t (R Choice-4)

Image of F (T) vs T (R Choice-4)

Image of f (t) vs t (R Choice-4)

Choices

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

a.

  • (ii)
  • (i)
  • (iii)
  • (iv)

b.

  • (iii)
  • (ii)
  • (i)
  • (iv)

c.

  • (ii)
  • (i)
  • (iv)
  • (iii)

d.

  • (i)
  • (ii)
  • (iii)
  • (iv)

Question number: 90

» Electric Communications » Basic Concepts of Signal Processing and Digital Filters

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Appeared in Year: 2018

MCQ▾

Question

The following statements are correct for DSB-SC signal:

1) It is a low pass filter.

2) It needs maximum transmitted power.

3) It is a result of product modulator.

4) Bandwidth of DSB-SC is twice the maximum frequency.

(July)

Choices

Choice (4) Response

a.

1), 2) and 3) are correct

b.

1), 3) and 4) are correct

c.

2), 3) and 4) are correct

d.

1), 2) and 4) are correct

Question number: 91

» Microprocessor and Microcontroller » Interfacing 8155, 8255, 8279, 8253, 8257, 8259, 8251 with 8085 Microprocessors

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Appeared in Year: 2018

Assertion-Reason▾

Question

Assertion (Ꭺ)

In , ALE is provided by the processor to latch the address into the address latch. (July)

Reason (Ꭱ)

Whenever the processor sends a valid address on the multiplexed lines, it also makes the ALE high.

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.

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