2014 · Science & TechnologyPrevious Year Question
Q46.
In addition to fingerprint scanning, which of the following can be used in the biometric identification of a person? 1. Iris scanning 2. Retinal scanning 3. Voice recognition. Select the correct answer using the code given below.
A. 1 only
B. 2 and 3 only
C. 1 and 3 only
D. 1, 2 and 3
Answer

D

Explanation

Both Iris and Retina scanning are used in biometric identification. Voice recognition is also used. Biometric ID uses near infrared light using digital cameras for iris/retinal scanning.