जॉइन Examsbookउत्तर : 4. "743 nm"
A gas absorbs a photon of 355 nm and emits at two wavelengths. If one of the emissions is at 680 nm, the other is at :5
प्र: A gas absorbs a photon of 355 nm and emits at two wavelengths. If one of the emissions is at 680 nm, the other is at :
- 1518 nmfalse
- 21035 nmfalse
- 3325 nmfalse
- 4743 nmtrue
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उत्तर : 4. "743 nm"
व्याख्या :
Answer: D) 743 nm Explanation: 1λ=1λ1+1λ2 1355=1680+1λ2 1λ2=680-355680×355 ⇒λ2=743nm.
समान प्रश्न
Since Nithya and Suganya exchange places, so Rita’s new position is the same as Monika’s earlier position. This position is 17th from the right and 10th from the left. Therefore Number of girls in the row = (16 + 1 + 9) = 26.