Question

Which of the following devices is associated with the reception of radio signals?

Answer 1

Answer: It’s MICROPHONE

Explanation: from PF book

A transmission system at a radio station consists of these devices:

1. Anoscillator,whichconvertsadirectcurrentintoahigh- frequency alternating current

2. Atransmittingantenna,whichsendsoutradiowaveshavingthe same frequency as the current supplied by the oscillator

3. Amicrophone,whichpicksupthesoundwavesandconverts them into a suitable electric current with the same pattern as the sound waves

4. A modulator, which enables the waves produced by the antenna to “carry” the pattern of the sound waves picked up by the microphone

Answer 2

What are the "following" devices ? ?
I think they're a list of choices that you have but aren't sharing.

A few devices associated with the reception of various types of
radio signals include the resonant tank, the local oscillator, the
mixer, the detector, the coherer, the discriminator, the parabolic
reflector, the lecher wires, the audio transducer, the demultiplexer,
and ... my personal guess ... the 'antenna' or 'aerial'.