The kind of sensor that is based on the Doppler principle, named after the Austrian scientist who originated the concept, is a(n):

The kind of sensor that is based on the Doppler principle, named after the Austrian scientist who originated the concept, is a(n):
A . Capacitance sensor
B . Electromechanical sensor
C . Microwave sensor
D . Acoustic sensor
E . Photo sensor

View Answer

Answer: C