alleryStart learning →Which pair of input and output transducers handles audio signals?
ACamera and LCD screen
BKeyboard and monitor
CForce sensor and motor
DMicrophone and speaker
Answer & Solution
Correct answer: D. Microphone and speaker
A microphone converts sound to an electric signal and a speaker converts it back to sound, so they form the audio pair.
Keep practising Communication Systems
Browse all Communication Systems questions for Bihar Board Class 12 (Science), or explore more Physics topics.
Related questions
In plate modulation, audio power needed is what share of RF carrier power?An automatic call distributor does what?Before transmission the transmitter modifies the electric signal forRepeated skipping of a signal between Earth and ionosphere is calledWhat does near-vertical-incidence skywave (NVIS) enable?Signals above about 30 MHz mostly do what to the ionosphere?What mainly causes fading of skywave signals?Why can skywaves reach beyond the horizon?