The wavelengths and frequencies of photons in transition 1,2 and 3 for hydrogen like atom are `lambda_(1),lambda_(2),lambda_(3), v_(1),v_(2)` and `v_(3)` respectively. Then: A. `v_(3)=v_(1)+v_(2)`B. `v_(3)=(v_(1)v_(2))/(v_(1)+v_(2)`C. `lambda_(3)=lambda_(1)+lambda_(2)`D. `lambda_(3)=(lambda_(1)lambda_(2))/(lambda_(1)+lambda_(2)`

The wavelengths and frequencies of photons in transition 1,2 and 3 for

1.	The wavelengths and frequencies of photons in transition 1,2 and 3 for hydrogen like atom are `lambda_(1),lambda_(2),lambda_(3), v_(1),v_(2)` and `v_(3)` respectively. Then: A. `v_(3)=v_(1)+v_(2)`B. `v_(3)=(v_(1)v_(2))/(v_(1)+v_(2)`C. `lambda_(3)=lambda_(1)+lambda_(2)`D. `lambda_(3)=(lambda_(1)lambda_(2))/(lambda_(1)+lambda_(2)`
Answer» Correct Answer - A::D

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