Question 66
MediumOriginal questionOver what distance was India's first free-space Quantum Key Distribution link demonstrated, in 2026?
Show the answer and explanation
CorrectNot quiteAnswer B
Correct answer: B
Explanation
The link ran 5.56 km between BISAG-N and IIT Gandhinagar.
It was free-space: the signal crossed open air, not optical fibre.
- Concept
- Free-space QKD
- Typical timeTypical
- 50 s
- Your timeYours
- —
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