MCQ Answer

Which type of optical sensor is used for detecting the presence of objects?

Which type of optical sensor is used for detecting the presence of objects?

ऑब्जेक्ट्स के प्रेज़ेन्स का पता लगाने के लिए किस प्रकार के ऑप्टिकल सेंसर का यूज़ किया जाता है?
Topic : Sensors, Actuators and Microcontrollers

A. Photodiode फोटोडायोड

B. Ultrasonic sensor अल्ट्रासोनिक सेंसर

C. Pyroelectric sensor पायरोइलेक्ट्रिक सेंसर

D. LDR एलडीआर




Correct Answer is :

A. Photodiode



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