Radio Receivers - Engineering

Q1:

In a broadcast superheterodynes receiver having no RF amplifier, the loaded Q of the antenna coupling circuit is 100. If the intermediate frequency is 455 kHz. The image frequency at 1000 kHz will be

A 1010 kHz

B 1455 kHz

C 1910 kHz

D 545 kHz

ANS:C - 1910 kHz

fsi = fs+2fi.
fsi = 1000 k+2*455 k = 1910 k.