A) 5890 Å
B) 7500 Å
C) 6479 Å
D) 8768 Å
Correct Answer: C
Solution :
| उत्तर - 6479 A |
| व्याख्या - कोणीय चौड़ाई \[\theta =\lambda /a\] |
| \[\theta \,\,\times \,\,\lambda \] |
| अत: \[\theta '=\theta +\frac{10}{100}\theta =1.1\theta \](तरंग दैर्ध्यता के लिए चौड़ाई 10% अधिक होगी) |
| \[\frac{\theta '}{\theta }=\frac{\lambda '}{\lambda }=\lambda =1.1\times \lambda =1.1\times 5890+\frac{10}{100}\theta =1.1\theta \] |
| \[\lambda '=6479\,\]Å |
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