NIELIT O Level Exam

Which sensor is commonly used for automatic street lighting systems?

Which sensor is commonly used for automatic street lighting systems?

स्वचालित स्ट्रीट लाइटिंग सिस्टम के लिए आमतौर पर किस सेंसर का उपयोग किया जाता है?

A. Moisture Sensor

B. LDR

C. PIR Sensor

D. Ultrasonic Sensor




Correct Answer is :

B. LDR



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