A pir sensor is primarily used for

MCQ Answer

A PIR sensor is primarily used for:

PIR सेंसर का मुख्य उपयोग निम्नलिखित कार्यों के लिए किया जाता है:

Topic : Sensors, Actuators and Microcontrollers

A. Measuring Temperature

B. Detecting Motion

C. Measuring Pressure

D. Detecting Moisture

Correct Answer is :

B. Detecting Motion