NIELIT O Level Exam

What type of sensor is typically used in smartwatches to measure heart rate?

What type of sensor is typically used in smartwatches to measure heart rate?

हृदय गति मापने के लिए स्मार्टवॉच में आमतौर पर किस प्रकार के सेंसर का उपयोग किया जाता है?

A. Optical sensor ऑप्टिकल सेंसर

B. Gyroscope जाइरोस्कोप

C. Infrared sensor इन्फ्रारेड सेंसर

D. Pressure sensor प्रेशर सेंसर




Correct Answer is :

A. Optical sensor



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