JEE MainPhysicsAtoms and NucleiMCQ+4 / −1
If 1 and 2 are the wavelengths of the third member of Lyman and first member of the Paschen series respectively, then the value of 1 : 2 is :
- A7 : 135
- B7 : 108
- C1 : 9
- D1 : 3
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