Electronics Communication Objective Questions & Answers Pdf - 2

Question: 6

The process of the IF wave amplified using IF amplifier is maintained constant using

(A) modulator

(B) demodulator

(C) limiter

(D) regulator

Question: 7

In the process of demodulation what signal is extracted from the modulated wave?

(A) Audio signal

(B) Carrier signal

(C) Low frequency signal

(D) All the above

Question: 8

The frequency variation of the carrier wave depends upon the instantaneous

(A) frequency of the signal

(B) frequency of the carrier

(C) amplitude of the carrier

(D) amplitude of the signal

Question: 9

The radio frequency amplifier in a simple radio receiver employs a _____ to amplify the selected radiowave.

(A) tuned base circuit

(B) modulator circuit

(C) tuned parallel circuit

(D) resonant circuit

Question: 10

The energy of a wave increases with

(A) amplitude

(B) wavelength

(C) frequency

(D) none of the above