If δP is the forbidden magnitude value in the pass band and δS is the forbidden magnitude value in th stop band, then which of the following is true in the stop band region?

If δP is the forbidden magnitude value in the pass band and δS is the forbidden magnitude value in the stop band, then which of the following is true in the pass band region?

A

1-δS≤|H(jΩ)|≤1

B

δP≤|H(jΩ)|≤1

C

0≤|H(jΩ)|≤ δS

D

1-δP≤|H(jΩ)|≤1

The low pass, high pass, band pass and band stop filters can be designed by applying a specific transformation to a normalized low pass filter.

A

True

B

False

What is the region between stop band and the pass band frequencies in the magnitude frequency response of a low pass filter?

A

Stop band

B

Pass band

C

Transition band

D

None of the mentioned

Is the following statement true? Statement: On the basis of band theory of solids the semi-conductors have a completely filled valence band, a partially filled conduction band and a narrow forbidden band.

A

Statement is false

B

Statement is true

A student M scored 25% marks and gets failed in an exam because of securing 15 marks less than the pass marks. Another student N passed the exam by scoring 45% marks, which are 25 marks more than the pass marks. Later, it was found that the actual pass marks are 40% more than the initially calculated pass marks. What is the average of both the pass marks?

A

78

B

65

C

91

D

82

If F1 and F2 are the lower and upper cutoff frequencies of a band pass signal, then what is the condition to be satisfied to call such a band pass signal as narrow band signal?

A

(F1-F2)>\(\frac{F_1+F_2}{2}\)(factor of 3 or less)

B

(F1-F2)⋙\(\frac{F_1+F_2}{2}\)(factor of 10 or more)

C

(F1-F2)<\(\frac{F_1+F_2}{2}\)(factor of 3 or less)

D

(F1-F2)⋘\(\frac{F_1+F_2}{2}\)(factor of 10 or more)

Study the table carefully to answer the question that follows Schools CLASSES VI VII VIII IX X Pass Fail Pass Fail Pass Fail Pass Fail Pass Fail A 84 12 56 12 82 9 80 14 86 12 B 56 18 64 16 88 7 64 11 73 12 C 53 16 60 10 58 12 63 9 63 18 D 62 11 62 14 64 13 61 7 53 17 E 70 15 76 17 78 10 52 13 79 1 F 58 8 72 13 72 14 45 12 75 11 What is the average number of fail students from class IX from all the schools together?

A

19

B

17

C

13

D

11

The magnitude |H(ω)| cannot be constant in any finite range of frequencies and the transition from pass-band to stop-band cannot be infinitely sharp.

A

True

B

False

What is the region between origin and the pass band frequency in the magnitude frequency response of a low pass filter?

A

Stop band

B

Pass band

C

Transition band

D

None of the mentioned

What is the stop band gain of a low pass filter with δS as the pass band attenuation?

A

-20log(1- δS)

B

-20log(δS)

C

20log(δS)

D

20log(1- δS)

If δP is the forbidden magnitude value in the pass band and δS is the forbidden magnitude value in th stop band, then which of the following is true in the stop band region?

Related Questions