state gov TNPSC Group 2/2A (தமிழ்நாடு) Mock Test 2024 General Knowledge Science Technology and Inventions
Consider the following statements about Bharat QR
a) QR code is a two-dimensional machine-readable optical label which contains information about the item to which it is linked.
b) The UPC barcodes can be scanned faster than the QR code.
1
Only a
2
Only b
3
Both a and b
4
Neither a nor b