What does the word "transponder" probably mean?

Question

Responses

to create and perform music, drama, or verse spontaneously so others can see it
to create and perform music, drama, or verse spontaneously so others can see it

to make up something completely from imagination
to make up something completely from imagination

a device that sends a radio signal through a different form
a device that sends a radio signal through a different form

an interview for a role as a singer, actor, dancer or musician where a panel hears you perform
an interview for a role as a singer, actor, dancer or musician where a panel hears you perform

To be of one heart or in harmony with something or someone else

Answer 1

a device that sends a radio signal through a different form

Answer 2

are you sure

Answer 3

Yes, I am sure. A transponder is typically a device that receives a radio signal and automatically responds by transmitting a different signal. It is commonly used in communication and navigation systems, such as in aviation for aircraft identification and tracking.