Question

<!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> Which type of sensor emits energy waves of its own to detect objects?

• A. Humidity Sensors
• B. Particle Sensors
• C. Radar Sensors
• D. Radiation Sensors

Answer 1

The correct option is C Radar Sensors

<!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> A RADAR emits radio waves, which get reflected by the objects. These reflected waves are measured by the radar, providing information about the object. In this case, the RADAR is both the sensor, as well as the source of energy.