📅 NSB Round Robin 2020🎓 MS🔄 Round 11#️⃣ Question 10❓ TOSS-UP✍️ Short Answer
Two beams of light with wavelengths of 500 nanometers are projected onto the same point. For these beams to destructively interfere, what is the minimal path length difference, in nanometers, between the beams?
✔️Answer:250
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