प्लांक स्थिरांक का मान \(6.63 \times 10^{-34}\, Js\) है व प्रकाश की गति \(3 \times 10^{17}\, nm\, s ^{-1}\) है। \(6 \times 10^{15}\, s ^{-1}\) आवृत्ति वाले क्वांटम प्रकाश की तरंगद्रेर्घ्य नैनोमीटर में निम्न में से कौन-से मान के सबसे अधिक नजदीक होगी ?

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.