In a superhetrodyne receiver, the difference frequency is chosen as the IF rather than the sum frequency because _________________?

Related Mcqs:

1. In superhetrodyne receiver, the input at mixer stage is________________?

   A. IF and RF
   B. RF and AF
   C. IF and AF
   D. RF and local oscillator signal

2. Most of the amplification in a superhetrodyne receiver occurs at ______________stage?

   A. IF
   B. RF amplifier
   C. Audio amplifier
   D. Detector

3. The IF is 455 kHz. If the radio receiver is tuned to 855 kHz, the local oscillator frequency is _______________?

   A. 455 kHz
   B. 1310 kHz
   C. 1500 kHz
   D. 1520 kHz

4. The superhetrodyne principle provides selectivity at ______________stage?

   A. RF
   B. IF
   C. audio
   D. Before RF

5. The signal voltage induced in the aerial of a radio receiver is of the order of_____________?

   A. mV
   B. µV
   C. V
   D. None of the above

6. The signal voltage induced in the aerial of a radio receiver is of the order of ________________?

   A. mV
   B. µV
   C. V
   D. None of the above

7. In a radio receiver, noise is generally developed at _______________?

   A. IF stage
   B. Receiving antenna
   C. Audio stage
   D. RF stage

8. If a radio receiver amplifies all the signal frequencies equally well, it is said to have high ________________?

   A. Sensitivity
   B. Selectivity
   C. Distortion
   D. Fidelity

9. In a radio receiver, we generally use ………….. oscillator as a local oscillator

   A. Crystal
   B. Wien-bridge
   C. Phase-shift
   D. Hartley

10. The diode detector in an AM radio receiver is usually found _____________?

    A. Before the first RF stage
    B. After the first RF stage
    C. After several stages of amplification
    D. None of the above