A PIR SENSOR IS PRIMARILY USED FOR

O Level Online Exam

NIELIT O Level Exam

A PIR sensor is primarily used for:

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

A. Measuring Temperature

B. Detecting Motion

C. Measuring Pressure

D. Detecting Moisture

Correct Answer is :

B. Detecting Motion