Question Detail
Which instrument is used to record physical happenings at a distant place ?
- Thermostat
- Tonometer
- Telemeter
- Transponder
Answer: Option C
Explanation:
Thermostat - is used to regulate the temperature at a particular point.
Tonometer - is used to measure the pitch of a sound,
Transponder - is used to receive a signal and transmit a reply immediately.