CBSE uses QR code on question papers to track and secure exams. Here’s why they are used and what happened in the recent Class 12 maths QR code issue.
While QR code menus were introduced as a convenient, contactless solution, growing numbers of customers say they create frustration and disrupt the dining experience.
After social media posts claimed that a QR code reportedly printed on the Class 12 Mathematics question paper directed students to a YouTube video, th.
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