What is the ratio of the Rydberg constant for helium to Hydrogen atom?

1.	What is the ratio of the Rydberg constant for helium to Hydrogen atom?
Answer» `1//2` `1//4` `1//8` `1//16` SOLUTION :`R=(-2pi^(2)mZ^(2)E^(4))/(CH^(3))` `(R_(He))/(R_(H))=(2xx2^2)/(1xx1^(2))=8` `therefore(R_(H))/(R_(He))=(1)/(8)`.

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