A receiver having an RF amplifier and an IF of 450 kHz, has Q of the coils 65 an

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Question
A receiver having an RF amplifier and an IF of 450 kHz, has Q of the coils 65 and an incoming frequency of 1200 kHz. The image rejection of the receiver is
Options
A. 5870
B. 3655
C. 236
D. 13.3

Correct Answer

236

More questions

1. The power dissipation in a transistor is the product of
Options
A. emitter current and emitter to base voltage
B. emitter current and collector to emitter voltage
C. collector current and collector to emitter voltage
D. none of the above

2. Match the following:

	List I (F.T and F.S)		List II (Properties)
A.	Fourier Series	1.	Discrete, Periodic
B.	Fourier Transform	2.	Continuous, Periodic
C.	Discrete Time Fourier	3.	Discrete aperiodic
D.	Discrete Fourier Transform	4.	Continuous, aperiodic

Options
A. A-3, B-4, C-2, D-1
B. A-1, B-2, C-4, D-3
C. A-3, B-2, C-4, D-1
D. A-1, B-4, C-2, D-3

3. Consider the following statements
1. An iron cored choke is non linear and passive device.
2. A carbon resistor kept in sunlight is a time invariant and passive device.
3. A dry cell is a time varying and active device.
4. An air capacitor is time invariant and passive device.
Of these statements
Options
A. 1, 2, 3 and 4 are correct
B. 1, 2, 3 are correct
C. 1, 2, 4 are correct
D. 2 and 4 are correct

7. Match the following:

	List I		List II
A.	Ampere's Law	1.
B.	Faraday's Law	2.
C.	Gauss's Law	3.
D.	Free Space	4.

Options
A. A-1, B-4, C-2, D-3
B. A-2, B-4, C-3, D-1
C. A-3, B-1, C-2, D-4
D. A-4, B-3, C-2, D-1

8. Assertion (A): Light triggering is very suitable for HVDC transmission.
Reason (R): Light triggering has the advantage of complete electrical isolation of gate circuit.
Options
A. Both A and R are correct and R is correct explanation of A
B. Both A and R correct but R is not correct explanation of A
C. A is correct but R is wrong
D. A is wrong but R is correct

10. The amount of photoelectric emission current depends on
Options
A. frequency of incident radiation
B. intensity of incident radiation
C. both frequency and intensity of incident radiation
D. none of the above

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